Taking into account the definition of density, the volume of 1.95 kg of alcohol is 2.6083 quarts.
Definition of densityDensity is a quantity that allows us to measure the amount of mass in a certain volume of a substance.
The expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:
density= mass÷ volume
It can be deduced that density is inversely proportional to volume: the smaller the volume occupied by a given mass, the higher the density.
Volume in this caseIn this case, you know that:
Density= 0.79 g/mLMass= 1.95 kg= 1950 gReplacing in the definition of density:
0.79 g/mL= 1950 g÷ volume
Solving:
0.79 g/mL ×volume= 1950 g
volume= 1950 g÷ 0.79 g/mL
volume= 2468.35 mL= 2.6083 quarts (being 1 mL= 0.00105669 quarts)
In summary, the volume of 1.95 kg of alcohol is 2.6083 quarts.
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A certain rifle bullet has a mass of 6.93 g. Calculate the de Broglie wavelength of the bullet traveling at 1649 miles per hour.
The de Broglie wavelength of the bullet traveling at 1649 miles per hour is 1.3 x 10^34 m.
What is de Broglie wavelength?
The wavelength that is associated with an object in relation to its quantum and mass is known as de Broglie wavelength.
The particles de Broglie wavelength is inversely proportional to its force.
de Broglie wavelength is expressed as : ^ = h/mv
Where ^ is wavelength, h is plank constant, m is mass and v is velocity.
1 miles = 1.60934 km
So 1649 miles = 2653.8 km
Then 2653.8 x 1000/ 60x60 = 737.2 ms -1.
The momentum of bullet is p = mv = 0.00693kg x 737.2 ms-1
= 5.109 kg/ms
Now, de Broglie wavelength = h/p = 6.63 x 10^-34 / 5.109 kg/ms
= 1.3 x 10^34 m
Thus, de Broglie wavelength of the bullet traveling at 1649 miles per hour is 1.3 x 10^34 m.
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If the oxide contains 22.24 % O by mass, what is the identity of the metal?
Express your answer as a chemical symbol.
The oxide contains 22.24% O by mass, so the identity of the metal as a chemical symbol is lead (Pb).
What is metal?A substance with high electrical conductivity, luster, and malleability, which readily loses electrons to form positive ions (cations) are called metals.
Mass percentage of oxygen in the oxide, i.e.,
ω(O) divided by 100 ω(O)
=22.24% ÷ 100%.
Mass percentage of oxygen in the oxide, i.e .ω(O) = 0.2224
Now the mass percentage of oxygen in the oxide multiplied by 100 ten we get the mass of oxygen in the oxide. If we take 100 grams of compound:
1) m(O) = ω(O) * 100 g.
Mass of oxygen in the oxide, i.e. m(O) = 0.2224 * 100 g.
Mass of oxygen in the oxide. i.e., m(O) =22.24g
Amount of oxygen, i.e.,
n(O) = mass of oxygen in the oxide ÷ molar mass of oxygen.
n(O) = m(O) ÷ M(O) amount of oxygen
n(O) = 22.24g ÷ 16 g/mol,
amount of oxygen i.e. n(O) = 1.39 mol
Mass of metal in the oxide, i.e., m(M) = 100 g - 22.24 g.
Mass of metal in the oxide i.e., m(M) = 77.76g
Now we to find the molar mass of metal oxide,
Molar mass of the metal :
= mass of metal in the oxide ÷ amount of oxygen(M)
= m(M) ÷ n(M). M(M)
= 77.76 g ÷ 1.39 mol.
Molar mass of the metal will be 5.94 g/mol.
Therefore, The identity of the metal is lead (Pb).
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Haaaaaaaalllllllpppppp
Name 2 Triangular Items that are something you can hold. And then name those items' Length, Width, Height, Area, or Volume.
Answer:
ice creem cone candy
Explanation
AgNo3(aq) +KSCN(aq) = KNO3(aq) + AgSCN(s) what is the equilibrium constan
The equilibrium constant is K=[KNO3]/[AgNO3][KSCN]
The equilibrium constant is defined as the ratio of the concentration of products upon reactants.The species present in solid phase are taken as unity.Substituting the values, we getK=[KNO3][AgSCN]/AgNO3][KSCN]K=[KNO3]×1/[AgNO3][KSCN]k=[KNO3]/[AgNO3][KSCN]The ratio of reactant to product amounts that is used to predict chemical behavior is the definition of the equilibrium constant for a chemical process. The rate constants are constant at a certain temperature.The value of a chemical reaction's reaction quotient at chemical equilibrium, a condition that a dynamic chemical system approaches is the equilibrium constant for that reaction when enough time has passed and at which its composition shows no evident tendency to change further.The equilibrium constant is independent of the initial analytical concentrations of the species of the reactant and product in the mixture given a certain set of reaction conditions.As a result, the composition of a system at equilibrium may be calculated from its starting composition using known equilibrium constant values. However, factors affecting the reaction such as temperature, solvent, and ionic strength may all affect the equilibrium constant's value.To learn more about equilibrium constant visit:
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please answer holy its been an hour
Reverse the sign of the second equation, change the sign of the enthalpy and add. Option B
What is the enthalpy?The enthalpy could be obtained by the use of the Hess law of constant heat summation. As such, we have a number steps and it is possible for use to obtain the enthalpy of the final reaction as shown by a series of manipulations.
By inspection, we can see that, if we desire to obtain the enthalpy of the final reaction as shown, then we have to reverse the sign of the second equation, change the sign of the enthalpy and add. Option B
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The 2017 U.S. gross domestic product (GDP) was valued at 19, 390, 604, 000 dollars. How many Gateway Arch-height stacks of
half dollars are needed to match the GDP in value?
Therefore, we require roughly 589,008.49 Empire State building-height stacks of dimes (856,418,343.3 / 1,454).
A stack of 100 dimes is about 5.3 inches tall. $10 is equal to 100 dimes. Therefore, 1,939,060,400 stacks of 100 dimes are required. This astounding number of dimes is 856,418,343.3 feet tall (1,939,060,400 x 5.3/12).
The Empire States Building is 1,454 feet tall when the antenna is added. Therefore, we require roughly 589,008.49 Empire State building-height stacks of dimes (856,418,343.3 / 1,454). Compared to 2016, when it climbed by 2.8 percent, or $503.8 billion, current-dollar GDP increased by 4.1 percent, or $766.1 billion, to a level of $19,390.6 billion in 2017. In 2021, the current-dollar GDP reached a level of $22.99 trillion, up 10.0% or $2.10 trillion.
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There are 25 elements found in living things. How many of these elements are found in some organisms but not all?
1
6
19
25
Answer: 6
Explanation: There are 25 elements found in living things. How many of these elements are found in some organisms but not all? 1 6 19 25
Which of the following best describes the reaction seen below?
2H2(g) + O2(g) → 2H2O(l)
a.
Two grams of hydrogen gas combine with 1 gram of oxygen gas to form 2 grams of water.
b.
Two molecules of hydrogen gas combine with 1 molecule of oxygen gas to form 2 molecules of water.
c.
Two liters of hydrogen gas combine with 2 liters of oxygen gas to form 2 liters of water.
d.
Two hydrogen atoms combine with 1 oxygen atom to form 2 water molecules.
Two molecules of hydrogen gas combine with 1 molecule of oxygen gas to form 2 molecules of water.
What is a word equation?A word equation is one in which the equation that is shown in the reaction is written in words rather than by the use of the chemical symbols of the elements that are involved.
We have the reaction; [tex]2H_{2} (g) + O_{2} (g) ---- > 2H_{2} O(l)[/tex], in order for this reaction to be written in the word equation form we have; Two molecules of hydrogen gas combine with 1 molecule of oxygen gas to form 2 molecules of water.
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How many atoms of hydrogen are in 3 moles of ammonia, NH3?
Answer:
[tex]5.4198[/tex] × [tex]10^{24}[/tex] atoms of hydrogen
Explanation:
Firstly, we need to know how many atoms of [tex]NH_{3}[/tex] are there in 3 moles of [tex]NH_{3}[/tex].
We know that there is [tex]6.022[/tex] × [tex]10^{23}[/tex] atoms in a mole of any substance.
[tex]6.022[/tex] × [tex]10^{23}[/tex] is Avogadro's Constant
[tex]6.022[/tex] × [tex]10^{23}[/tex] × 3 = [tex]1.8066[/tex] × [tex]10^{24}[/tex]
Therefore in 3 moles of ammonia, there are [tex]1.8066[/tex] × [tex]10^{24}[/tex] atoms.
Next, you should determine how many molecules of an element is present in ammonia.
There is 1 Nitrogen molecule and 3 Hydrogen molecules for every mole of ammonia.
Finally, since we know 3 moles of ammonia contains [tex]1.8066[/tex] × [tex]10^{24}[/tex] atoms, we just have to multiply accordingly to get the individual amount of atoms of an element a compound has.
For Nitrogen :
1 × [tex]1.8066[/tex] × [tex]10^{24}[/tex] = [tex]1.8066[/tex] × [tex]10^{24}[/tex] atoms of nitrogen
For Hydrogen :
3 × [tex]1.8066[/tex] × [tex]10^{24}[/tex] = [tex]5.4198[/tex] × [tex]10^{24}[/tex] atoms of hydrogen
Therefore, there is [tex]5.4198[/tex] × [tex]10^{24}[/tex] hydrogen atoms in 3 moles of ammonia.
Hope this answer helped!Zootopia movie: Why is Judy Hopps placement at the police academy so unusual?
Answer:
down below
Explanation:
Judy Hopps was one of the smaller prey animal while the others were predators or bigger prey animals. Meaning, she was tiny and in some minds, was easier to take down or may not be able to do the job as well as the bigger animals. Also, she was, less noticeably, the only female prey animal.
The lab procedure says, "weigh 1.0 g of sodium chloride." Which of the following are acceptable masses?
The lab procedure
The 150 mL beaker's contents should be emptied into the sink, followed by a thorough water rinse of the beaker and temperature probe sodium . Add 20 g of ice to the beaker after weighing it.
sufficient water to make the combined weight match the combined weight of the ice and water consumed above. Put the thermometer in the slush, press the green button, and agitate the mixture.
For two minutes, slush. sodium Stir the slush while adding the 1.0 g of salt chloride. five minutes Simply press the red button. After saving the data, select Store Latest Run from the list.
The menu for experiments print the graph with both the sodium chloride and urea plots visible at once. sodium Which plot corresponds to which solid should be noted on the printout.
The 150 mL beaker's contents should be emptied into the sink, followed by a thorough water rinse of the beaker and temperature sodium .
Simply select Show Data Set from the Data menu, followed by the Run # you want to display, to examine one of your earlier plots. It is possible to display multiple pieces of data at once.
The Latest Run is the most recent Run, and the Runs are numbered consecutively in the order in which they were acquired. To display the chosen plot or plots, just use the commands Hide Data Set and Show Data Set. The plot display settings (such as axes scaling, etc.) may need to be changed.
Display one or both students' temperature charts using the y-axis label, as desired. The Data menu also includes options for deleting individual data sets.
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What is the limiting reactant if 0.5 g Al is reacted with 0.5 g CuCl2?
What is the theoretical yield of copper produced by this reaction?
Taking into account the reaction stoichiometry ,CuCl₂ is the limiting reagent and the theoretical yield of copper produced is 0.2363 grams.
Reaction stoichiometryIn first place, the balanced reaction is:
2 Al + 3 CuCl₂ → 3 Cu + 2 AlCl₃
By reaction stoichiometry (that is, the relationship between the amount of reagents and products in a chemical reaction), the following amounts of moles of each compound participate in the reaction:
Al: 2 molesCuCl₂: 3 molesCu: 3 molesAlCl₃: 2 molesThe molar mass of the compounds is:
Al: 27 g/moleCuCl₂: 134.44 g/moleCu: 63.54 g/moleAlCl₃: 133.35 g/moleThen, by reaction stoichiometry, the following mass quantities of each compound participate in the reaction:
Al: 2 moles ×27 g/mole= 54 gramsCuCl₂: 3 moles ×134.44 g/mole= 403.32 gramsCu: 3 moles ×63.54 g/mole= 190.62 gramsAlCl₃: 2 moles ×133.35 g/mole= 266.7 gramsLimiting reagentThe limiting reagent is one that is consumed first in its entirety, determining the amount of product in the reaction. When the limiting reagent is finished, the chemical reaction will stop.
Limiting reagent in this caseTo determine the limiting reagent, it is possible to use a simple rule of three as follows: if by stoichiometry 54 grams of Al reacts with 403.32 grams of CuCl₂, 0.5 grams of Al reacts with how much mass of CuCl₂?
mass of CuCl₂= (0.5 grams of Al× 403.32 grams of CuCl₂)÷ 54 grams of Al
mass of CuCl₂= 3.734 grams
But 3.734 grams of CuCl₂ are not available, 0.5 grams are available. Since you have less mass than you need to react with 0.5 grams of Al, CuCl₂ will be the limiting reagent.
Definition of theoretical yieldThe theoretical yield is the amount of product acquired through the complete conversion of all reagents in the final product, that is, it is the maximum amount of product that could be formed from the given amounts of reagents.
Theoretical yield of copperConsidering the limiting reagent, the following rule of three can be applied: if by reaction stoichiometry 403.32 grams of CuCl₂ form 190.62 grams of Cu, 0.5 grams of CuCl₂ form how much mass of Cu?
mass of Cu= (0.5 grams of CuCl₂× 190.62 grams of Cu)÷ 403.32 grams of CuCl₂
mass of Cu= 0.2363 grams
Then, the theoretical yield of copper produced is 0.2363 grams.
SummaryIn summary, you obtain:
CuCl₂ is the limiting reagent.the theoretical yield of copper produced is 0.2363 grams.Learn more about theoretical yield:
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what is the molar mass for CaWO4
Answer:
Calcium tungstate
287.93 g/mol
Which statement about reversible reactions is correct? (1 point)
O The forward and reverse reactions must happen at the same rate.
O They are always at equilibrium.
O They always involve gases.
O They can occur in either direction.
Answer: the last one
Explanation: it is the only one that makes sense \
sorry if its wrong
The _____which are numbers that are found on the lower____hand side of each element symbol. This tells you the number of ____of this element in the molecule
Answer:
twenty charecter answer
1.3511, 2.473, 5.687524, 7.555, 8.235 rounded to one significant figure. Please help, I'm stuck!
Answer:
1,2,6,8,8
Explanation:
1.3511=1
2.473 =3
5.687524=6
7.555=8
8.235=8
why do we have to multiply the atomic mass of the oxygen to get 32?
How can an igneous rock turn into a sedimentary rock?
Answer:
An Igneous rock turns into a Sedimentary rock after going through two processes.
Explanation:
An igneous rock is crushed into little shards of rock called sediment, the sediment is then packed together by other rocks or strong forces, that form together to make a Sedimentary rock.
You can see the image for your explanation.
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Igneous rocks are broken down into sediments which are then compressed by forces of water, wind to form sedimentary rocks.
What are sedimentary rocks?
They are the types of rocks which are formed as a result of accumulation of minerals or organic particles at the surface of the earth.Sedimentation is the name given to a collective process which cause the particles to settle.
The study of sedimentary rocks is useful in civil engineering and as important sources of coal, fossil fuels and ores.The color of sedimentary rock is often determined by iron content and sometimes due to the presence of organic matter.
They are classified based on origin in to 4 types which are clastic, biochemical ,chemical and other sedimentary rocks.While based on composition they are classified as siliciclastic,carbonate ,evaporite,organic rich,siliceous ,iron-rich and phosphatic sedimentary rocks.
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I have a tube filled with water with a temperature of 20.0°C and with a vapor pressure of 17.5 torr. If I collect gas over this water, and the total gas pressure of the gas solution is found to be 453.0 torr, what would be the pressure of the pure gas in atm? Question 21 options:
The pure gas has a pressure of 0.573 atm.
How does pressure work?Pressure is the amount of force applied perpendicularly to an object's surface divided by the surface area across which it is applied. In comparison to the surrounding pressure, gauge pressure is the pressure. Pressure is expressed using a variety of units.
What in chemistry is ATM?The definition of the standard atmosphere, or atm, as a unit of pressure is 101325 Pa. It is occasionally used as a standard pressure or a reference pressure. It roughly corresponds to the average atmospheric pressure at sea level on Earth.
based on the specified value;
we know that,
P(t)=P(water)+P(pure gas)
where,
P(t)=TOTAL PRESSURE OF THE GAS
P(water)= Vapour pressure of water
P(pure gas)=Pressure of pure gas
GIVEN;
P(pure gas)=P(t)-P(water)
=(453.0-17.5)
=435.5 torr
or P(pure gas)=435.5/760
=0.573
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2. How many grams of copper(II) chloride contain 2.17 grams of Cu²+?
4.63 gram of Cooper(II) chloride contain 2.17 grams of Cu²+
Molar mass of copper(II) chloride = 134.45 g/mol
Molar mass of copper = 63 grams
The average mass of an element's atoms expressed in atomic mass units is known as its atomic mass (amu, also known as daltons, D). The mass of each isotope is multiplied by its abundance to produce the atomic mass, which is a weighted average of all the isotopes of that element.
63 gram of copper is present in 134.45 g/mol of copper(II) chloride
1 gram copper is present in copper(II) chloride = 134.45/63 = 2.13 gram
2.17 gram Cu²+ in copper(II) chloride = 2.13 gram x 2.17 gram = 4.63 gram
Hence, 4.63 gram of Copper(ii) chloride contain 2.17 grams of Cu²+
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What is the meaning of the word string in string coffe and string acid? How do we deal with this difference?
It ought to be "strong." Otherwise, string acid and string coffee would be absurd. So, the proper query would be:
What does the word "strong" mean in the context of strong coffee and strong acid?
Strong coffee indicates that there are more solids and coffee dissolved in the solution. It implies that strong coffee will typically be darker in color. It will also include a lot of caffeine. Strong coffee includes espresso and Death Wish Coffee.
The only acid that totally ionizes in aqueous solution is a strong acid. As soon as it is dissolved in water, it releases one proton H+. Its pH range will be between 0 and 1.
Strong acids include hydrochloric acid and sulphuric acid, for instance.
When strong coffee is dissolved in water, no chemical reaction occurs. When strong acid is dissolved in water, a chemical reaction occurs.
Strong coffee can be consumed, but strong acid cannot because they are both extremely corrosive.
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On what axis is the dependent variable in the graph below?
Growth Rate
100
2828&SARS
90
80
70
60
50
40
30
20
10
0
Full Sun
Plants for Sun and Shade
Partial
Shade
Sun Exposure
Geranium Impatiens Fuchsis Trillium
Partial Sun
Dappled
Sun
Full
Shade
On sunlight exposure depends the growth rate of variable plants
A. Geranium plant is sun loving plant because it showed maximum growth in full sun condition. The growth gradually decreases with the availability of sunlight. In full shade Geranium showed only 10% growth.
B. Impatiens plant showed its maximum growth in partial shade condition. The growth of only 40% occurs in dappled sun condition. In partial sun and full shade conditions it shows only 30% growth. Full sun is harmful for impatiens as it showed only 10% growth.
C. Fuchsia also show maximum growth in partial shade condition. It showed gradual decrease in growth in dappled sun, full shade, partial sun, and full sun respectively.
D. Trillium is shade loving plant because it shows maximum growth in full shade. It shows the lowest growth in full sun which gradually increases in partial sun, partial shade, dappled sun and full shade respectively.
So basically Geranium is full sun plant, Trillium is full shade plant and Impatiens ad Fuchsia are partial shade plants.
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why is the potassium atom larger than the kypton atom
what is the mass number of iron with 19 neutrons?
Answer:
Explanation:
The mass number of iron is 55.845amu. The mass number is equal to the number of protons added to he number of neutrons in an atom. Each neutron or proton has a mass of about 1amu.Thus we say 55.84500 atomic mass units * 19 =
1 061.055 atomic mass units
Calculate the density in g/ml of 2.0 L of gasoline that weighs 1.32 kg
Answer: 0.66 g/mL
Explanation: The formula for density is d= m/v where m=mass and v=volume.
The mass was given in the problem, m= 1.32kg
The volume was also given in the problem, v= 2.0L
d= m/v ---> d= 1.32kg/2.0L ---> d=0.66kg/L
The problem calls for the answer to be written in g/mL, so we must convert the units. 1 kg contains 1000g and 1 L contains 1000 mL.
1000g/1000mL = 1 so the units change but the 0.66 does not. Therefore, your answer is 0.66g/mL (Two significant figures because 2.0 only has 2 significant figures).
What is the formula for the molecule above? (Periodic table squares are provided below,
if you want them.)
A. H2
B. H2O
C.O2
D. H
Answer:
I believe H2.
Explanation:
It's H2 because there are two electrons on there being share by 2 atoms.
Since Hydrogen can only get a maximum of 2 electrons and no other atoms are present, that is why it's H2.
How can some fish change their
depth in the water column?
Answer:
skill
Explanation:
Answer: The more air a fish swim bladder contains, the higher the fish will suspend or float in the war.
Explanation:
Write the formula for the compounds below:
Sodium iodide
Potassium perchlorate
Calcium nitrite
Copper(||) sulfate
Answer:
check explanation
Explanation:
Sodium Iodide=NaI
Potassium perchlorate=KClO4
Calcium nitrate= Ca(NO3)2
Copper (ii) sulfate=CuSO4
A Patient with family history of a hematologic condition is being seen by a nurse. What assessment funding needs additional assessment for the condition.
Nursing needs assessments involve gathering subjective and factual information, including the patient's psychosocial history, family history, surgery history, medical history, and medication history.
Introduction Hematologic diseases, sometimes known as blood disorders or disorders of the blood-forming organs, affect millions of Americans. Hematologic diseases, in addition to blood cell tumors, also include rare genetic disorders, HIV-related ailments, sickle cell disease, anemia, and side effects from chemotherapy or blood transfusions.
In hematologic disorders, the genetic condition is passed from parents to their offspring.
Hemoglobin can be aberrant in numerous ways.
a condition like sickle cell anemia, thalassemia.
Certain blood disorders are brought on by a decrease in red blood cell formation.
• Nursing needs assessments involve gathering subjective and factual information, including the patient's psychosocial history, family history, surgery history, medical history, and medication history.
• The patient's family should also be checked for similar disease patients, and accurate disease-related data must be gathered.
• From time to time, thoroughly review all of the patient's reports. Which the patient reported early.
Using clinical judgment, do an analysis or diagnosis to determine the patient's condition and identify the primary causes.
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A sample of natural gas was found to contain 0.070% (percent by volume) of hydrogen sulfide, H2S. Calculate the mass of H2S present in 2.00 L of natural gas at 298 K.
The mass of H₂s present in 2.00 L of natural gas at 298 K is 0.002156 g.
What is the volume of hydrogen sulfide in 2.00 L of natural gas at 298 K?The volume hydrogen sulfide in 2.00 L of natural gas at 298 K is calculated as follows:
Volume of hydrogen sulfide = percent composition * volume of natural gas
Volume of hydrogen sulfide = 0.07/100 * 2.00 L
Volume of hydrogen sulfide = 0.014 L
The given temperature is standard temperature.
Density of H₂s at STP is equal to 1.54 g/L.
mass of H₂s = density * volume
mass of H₂s = 0.0014 * 1.54
mass of H₂s = 0.002156 g
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