1. The empirical formula of the weak acid is H₂PO₃
2. The molecular formula of the weak acid is H₄P₂O₆
Data obtained from the question Mass of compound = 0.8821 gH = 0.0220 gP = 0.3374 gO = 0.8821 - (0.0220 + 0.3374) = 0.5227 gEmpirical formula =? Empirical formula =? Molecular formula =?1. How to determine the empirical formulaThe empirical formula of the compound can be obtained as follow:
Divide by their molar mass
H = 0.0220 / 1 = 0.022
P = 0.3374 / 31 = 0.01
O = 0.5227 / 16 = 0.03
Divide by the smallest
H = 0.022 / 0.01 = 2
P = 0.01 / 0.01 = 1
O = 0.03 / 0.01 = 3
Thus, the empirical formula of the compound is H₂PO₃
2. How to determine the molecular formula Empirical formula = H₂PO₃Molar mass of compound = 162 g/molMolecular formula =?Molecular formula = empirical × n = mass number
[H₂PO₃]n = 162
[(1×2) + 31 + (16×3)]n = 162
81n = 162
n = 162 / 81
n = 2
Molecular formula = [H₂PO₃]n
Molecular formula = [H₂PO₃]₂
Molecular formula = H₄P₂O₆
Learn more about empirical and molecular formula:
https://brainly.com/question/18680555
#SPJ1
People are looking to see why some people get bit more by mosquitos than others. Some people have
wondered if the scent of their perfume can have an effect on how often they are bit.
a)
independent variable:
b) dependent variable:
c) three possible constants in the
scenano
Answer:
see bellow..
Explanation:
a) independent variable ; the specific scents being used (like vanilla, or blueberry etc.)
b) how much of it is sprayed
c) the weather, brand of perfume, record time
how many elements are present in the compound
go play mine craft use code wild ............................
An element has 3 naturally occurring isotopes. Isotope 1 has a relative
abundance of 12.99% and isotope 2 has a relative abundance of 40.49%.
What is the relative abundance of isotope 3?
The correct answer for relative abundance of isotope 3 is 46.52%.
Let's consider element X, which has 3 isotopes: isotope 1 with a relative abundance of 12.99%, isotope 2 with a relative abundance of 40.49% and isotope with an unknown relative abundance.
Assuming there are only 3 isotopes of element X, we know that the sum of the relative abundances of them is equal to 100%. The relative abundance of isotope 3is:
ab(isotope 1) + ab(isoptope 2) + ab (isotope 3) = 100 %
isotope 3 = 100% - (12.99% + 40.99 % )
isotope 3 = 46.52 %
Element X has 3 isotopes: isotope 1 with a relative abundance of 12.99%, isoptope 2 with a relative abundance of 40.49% and isotope 3 with a relative abundance of 46.52%.
The percentage of atoms with a specific atomic mass found in a naturally occurring sample of an element is known as its relative abundance.
Learn more about relative abundance here :-
https://brainly.com/question/24873591
#SPJ9
Determine the number of protons and electrons in
each lon
Al3+
Enter your answers as integers separated by a comma.
#p¹, #e=
Number of protons in Al^3+ are 13 and number of electrons are 10.
Every atom has a proton, a subatomic particle, in its nucleus. The particle is electrically charged positively.A negatively charged subatomic particle known as an electron can either be free or attached to an atom.The number of protons in the nucleus is equal to the atomic number.The number of electrons in a neutral atom is equal to the number of protons.Here aluminium is not an atom. it is presented as ion.
Atomic number of aluminium is 13
therefore, number of proton = 13
This aluminium ion Al^3+ has a positive charge of three. Aluminum, which has an atomic number of 13, has lost three electrons when it has a positive charge of 3.
therefore number of electrons in aluminium ion = 13 - 3 = 10
+3 charge will not affect the number of proton. thus number of proton will remain same as atomic number of aluminium.
Therefore, number of proton in aluminium ion are 13 and number of electrons in aluminium ion are 10.
Learn more about ion here:
https://brainly.com/question/500658
#SPJ9
How many atoms of nitrogen are there in one mole of nitrogen dioxide?
Express your answer in number of atoms to four significant figures.
Answer:
All objects in the universe are made up of atoms. The number of atoms that can make up even a small object make up an incredibly large and unfathomable number, on the order of 10231023 atoms. The mole measurement was created in order to more easily deal with the number of atoms in a given substance. One mole is equal to 6.022 × 10236.022 × 1023 atoms.
Carbon monoxide (CO) is a poisonous gas because it binds very strongly to the oxygen carrier hemoglobin in blood. A concentration of 8.00 × 102 ppm by volume of carbon monoxide is considered lethal to humans. Calculate the volume in liters occupied by carbon monoxide in a room that measures 20.35 m long, 13.17 m wide, and 17.25 m high at this concentration.
Volume of CO in the room:
Answer:
Explanation:
Click the link and you can see the explanation from brainly.
Can you please help me
Question in picture
Question in picture
The correct answer is a sphybridisation in z coordinate.So to form sphybridisation we need a s orbital and a p orbital .
In genomics, hybridization is the process by which two complementary single-stranded DNA or RNA molecules bond together to form a double-stranded molecule.The bonding is determined by the correct base pairing between the two single-stranded molecules. When one s and one p orbital in the same main shell of an atom combine to form two new equivalent orbitals, this is referred to as sphybridization.
The newly formed orbitals are known as sphybridized orbitals. It forms linear molecules with a 180° angle. Atomic orbitals include both s and p orbitals. These orbitals represent the most likely region in which we can find an electron of that atom. The primary distinction between s and p orbitals is that s orbitals are spherical in shape, whereas p orbitals are dumvell-shaped.So to form sp hybridisation we need a s orbital and a p orbital .
Learn more about hybridisation here :-
https://brainly.com/question/14140731
#SPJ9
Which of the following describes a difference between thunderstorms and hurricanes?
A Hurricanes last for a shorter period of time than thunderstorms.
B
Thunderstorms have much stronger winds than hurricanes.
с Thunderstorms don't have a spiral wind formation and hurricanes do.
D
Hurricanes form over warm land while thunderstorms form over water.
Answer:
The answer to your question is C. Thunderstorms don't have a spiral wind formation and hurricanes do. Hope this helps.
Explanation:
Which of the following atoms has the highest ionization energy?
Aluminum (Al)
Sodium (Na)
Phosphorous (P)
Magnesium (Mg)
The phosphorus atom have has the highest ionization energy .
The ionisation energy of atoms are given as ,
Sodium ( Na ) = 496
Phosphorus ( P ) =1012
Magnesium (Mg ) =738
Aluminium ( Al ) = 578
Since , phosphorus atom have half filled configuration . It is very difficult to remove electrons from atoms having half filled configuration . Hence, it requires more energy .
The ionisation energy measures an element's ability to participate in chemical processes that call for the creation of ions or the donation of electrons. It is often connected to the type of chemical bonds that exist between the components in the compounds they form. See also electron affinity and binding energy.
to learn more about ionisation energy please click here ,
https://brainly.com/question/27356170
#SPJ1
9. The surface of the Moon is covered in craters, mountains, and———
plains from ancient volcanoes,
in Space
Moon geological research is based on observations made using telescopes on Earth, measurements made by spacecraft in orbit, lunar samples, and geophysical data.
Oxygen (O), silicon (Si), iron (Fe), magnesium (Mg), calcium (Ca), aluminum (Al), manganese (Mn), and titanium are among the substances known to exist on the lunar surface (Ti). The most plentiful ones include silicon, iron, and oxygen. The estimated oxygen concentration is 45%. (by weight). Due to solar wind deposition, carbon (C) and nitrogen (N) seem to be present only in very small amounts.
Impact craters, associated ejecta, a few volcanoes, hills, lava flows, and depressions filled with magma are the main features of the lunar surface.
Learn more about the moon's surface here:
https://brainly.com/question/1780268
#SPJ9
A molecular biologist measures the mass of cofactor A in an average yeast cell. The mass is 90.2 pg. What is the total mass
in micrograms of cofactor A in a yeast colony containing 10^5cells?
The total mass in micrograms of cofactor A in a yeast colony containing 10^5cells is 2.47 ug.
As a cofactor for several oxidative and biosynthetic activities in intermediate metabolism, coenzyme A (CoASH) has a distinct function. When acyl-CoA thioesters are produced from organic carboxylic acids, the acid is activated for additional biotransformation processes and enzyme recognition is facilitated.
A coenzyme is an organic, non-protein molecule that an enzyme needs in order to carry out its catalytic function. An enzyme is a protein that serves as a catalyst to speed up biological reactions without changing itself in the process.
24.7 pg./cell x 105 cells x 1 ug/106 pg.
= 24.7x10-1 ug
= 2.47 ug
Learn more about cofactor here-
https://brainly.com/question/28207649
#SPJ9
Advertisements on the internet, television, and radio try to get you to buy something by making a claim or statement. These claims will often sound scientific. However, many advertisements make statements or conclusions that are not entirely true. Advertisements sometimes exaggerate, which means they make a statement that a product is or does more than is actually true.
When deciding if an advertisement is true, look for other data that supports these claims. The data should come from peer-reviewed journals or trusted science textbooks.
Research a product you see advertised. What claim does it make? Does other scientific data support this claim? Decide if the claim is factual, fictional, or an exaggeration. List your sources to show your inference.
Advertisements on the internet, television, and radio try to get you to buy something by making a claim or statement. These claims will often sound scientific and it makes the claim as factual, and fictional as well as an exaggeration.
Advertising must be truthful and must not deceive consumers. If important details are omitted or the assertion implies something untrue, it may be misleading. For instance, if substantial and hidden fees are payable upon lease signing, a leasing advertisement for an automobile that advertises "$0 Down" may be deceptive.
Additionally, statements must be supported, particularly when they relate to performance, safety, or health. Depending on the product, the claims, and what experts deem necessary, the type of evidence may vary. Following is the list of sources to show the inference of the product advertised,
Advertisements cannot be unjust; they must be genuine and non-deceptive; they must also be supported by proof. Ads promoting specialist products, including consumer leases, credit, 900 phone lines, and items sold through mail order or telephone sales, are subject to additional rules. Additionally, each state has consumer protection regulations that apply to advertisements running there.Learn to know more about advertisements on
https://brainly.com/question/25528284
#SPJ1
A rectangular piece of copper, 2.13 cm by 0.79 cm by 1.14 cm, weighs 17.11g. What is the density of the copper?
The Density of the copper is 8.91 g/cm³.
What is the density of the copper?The density of a substance is obtained from the ratio of the mass and the volume of the substance.
The formula of density is given below:
Density = mass/volumeThe mass of the copper is 17.11 g
The volume of the rectangular piece of copper is calculated as:
volume = length * breath * height
Volume of the rectangular piece of copper = (2.13 * 0.79 * 1.14) cm³
Volume of the rectangular piece of copper = 1.92 cm³
Density of the copper = 17.11 g/1.92 cm³
Density of the copper = 8.91 g/cm³
Learn more about density at: https://brainly.com/question/15940284
#SPJ1
A German automobile's gas mileage is 18km/L. Convert this quantity to miles per gallon.
Answer:
42
Explanation:
miles per gallon = kilometers per liter × 2.35
Complete this analogy: Competition is to ____________as_
is to food webs. *
Answer:
Competition occurs when individuals of different species struggle to obtain the same resource in an ecosystem (such as food or living space). Adaptations, such as physical mutations and behavior modifications, can help an organism outcompete its competitors.
Give the meaning of the term electronegativity
Answer:
Electronegativity is the power of an atom (in a molecule) to attract electrons to itself. It increases from left to right in the periodic table.
Is AgNo3 an allotrope or a polymorph?
AgNo3 is a polymorph as it can be many forms.
PolymorphA substance's capacity to crystallize into various crystalline forms is known as polymorphism. These crystal modifications are also referred to as polymorphs. Polymorphs behave differently in the solid state even though they are the same in the liquid or gaseous states.
Allotrope :The ability of some chemical elements to exist in two or more different forms, in the same physical state, is known as allotropy or allotropism. These forms are referred to as the element's allotropes. Allotropes are different structural modifications of an element in which the bonding between the atoms is altered.
To know more about crystalline :
https://brainly.com/question/28274778
#SPJ9
6. How can an answer from an experiment be verified?
Redo
Explanation:
if the experiment is been done twice or more and if gives the same answer the experiment is verified
18. What is the mass of an object with a density of 2.44g/ml and a volume of
25ml?
a. 61g
b. 61.0g
c. 10.2g
d. 0.098g
The mass of the object with a density of 2.44g/ml and a volume of
25ml is 61g
Density is mass per unit volume.The mass is as follows;d=m/vm=dvm= 2.44 g/ml ×25 ml=61gThe measure of how densely a substance is packed together is called density. It is defined as the mass per unit volume.A measurement of density contrasts the mass of an object with its volume. The amount of matter in a certain volume of an object is referred to as high density. A substance's density describes how thick it is in a given space. Density is essentially a measurement of how tightly things are packed. It is a particular physical trait of that thing.To learn more about density visit:
https://brainly.com/question/15164682
#SPJ9
a student accidentally drops the watch glass atop the evaporating dish containing the dried salt and it breaks , how could this affect the calculation
When this occurs the result that is obtained from the calculation would no longer be trustworthy because it is above the actual value.
How would this affect the calculation?We know that evaporation involves the heating a sample of a substance until all the water in it leaves and it remains only the crystalline solid. The whole water would evaporate and the mass of the sample would decrease.
When the student accidentally drops the watch glass atop the evaporating dish containing the dried salt and it breaks, the particles of the glass would mix with the dried salt and increase the mass of the dried salt.
When this occurs the result that is obtained from the calculation would no longer be trustworthy because it is above the actual value.
Learn more about evaporation:https://brainly.com/question/12306949
#SPJ1
What is the difference between
a. Acid and Base
b. Weak acid and strong acid
c. Organic acid and minerals acid
d. Neutral salt and minerals acid
Base is a proton acceptor, whereas acid is a proton giver.
Strong acid and strong base depend upon ionization.
Acid is a hydrogen ion donor and base is a hydrogen ion acceptor.When an acid is dissolved in water, all of its molecules disintegrate, making the acid powerful. When an acid is dissolved in water, only a small number of its molecules disintegrate, making the acid weak.A strong acid is an acid in which all of the acid is dissolved in water, its molecules disintegrate.A weak acid is an acid in which only a few molecules break apart when the acid is dissolved in water.Mineral acids are inorganic compounds consisting of different chemical element combinations, whereas organic acids are organic molecules mostly composed of carbon and hydrogen atoms. This is the main difference between mineral acids and organic acids.Mineral acids are inorganic compounds consisting of different chemical element combinations, The acid for which pH is close to 7 is a neutral acid.To learn more about acids visit:
https://brainly.com/question/11543614
#SPJ9
calculate the molar mass of Na2S2O3.5H2O
Answer:
248
Explanation:
Na2 = 23 x 2
S2 = 32 x 2
O3 = 16 x 3
5h20 = 5 x (2+16)
add these and u get 248
calculate the energy required to excite an electron from n=2 to n=4
Explanation:
taking atom as hydrogen than
answer is +2.55
just apply Delta energy=energy in 4th orbit -energy in 2nd orbit
[tex]energy = - 13.6 \times z ^{2} \div n {}^{2} [/tex]
so here you can find answer
lim f(x) x-3 lim f(x) x-1– lim f(x) x-17+ lim f(x) x3 lim f(x) x5
how do I find the limits using graphs
Explanation:
try this option (all the details are in the attachment).
Three girls raced their model cars down a
40-meter track. Their times are in the table.
What was the average speed at which the
cars rolled down the track?
The average speed at which the cars rolled down the track 4.28 m/s
Average Speed is defined as Total Distance Traveled ÷ Total Time Taken . SI unit of average speed is meter per second ( m/s).
Average Speed = total distance traveled ÷ total time taken
we have , jessica's car travelled 40 m in 10 sec
kristi's car travelled 40 m in 20 sec
laticia's car travelled 40m in 8 sec
Average Speed = total distance traveled ÷ total time taken
so, = 40+40+40 ÷ 10+20+8
= 120÷28
= 4.28 m/s
average speed is a scalar quantity. It is represented by the magnitude and does not have direction.To know more about average speed visit :
https://brainly.com/question/23270299
#SPJ9
A certain chemical reaction releases 27.4 kJ/g of heat for each gram of reactant consumed. How can you calculate what mass of reactant will produce 880. J of
heat?
Set the math up. But don't do any of it. Just leave your answer as amath expression.
A chemical reaction of exothermic kind releases energy in the form of heat and light.
We are given that reactant releases 27.4kJ/g for every gram of reactant consumed.
We are required to find number of grams of reactant that has been consumed
It is also given that 880J of energy is released
Hence, grams of reactants consumed is 880/27.4gm
Disclaimer:
It has been asked by the student to leave the question as mathematical expression.
For further reference:
https://brainly.com/question/15000187?referrer=searchResults
#SPJ9
When a large object fell into a full swimming pool, it displaced 33.8 gallons of water. The density of the object is 1.65 g/mL. What is the object's weight in pounds?
If the density of the object is 1.65 g/mL. The object's weight in pounds m = 483.32 pounds.
what is density ?The density can be defined as the mass per unit volume which can be described it is the ratio between mass and volume.
Density is a measurement of matter, where it determine how tightly the matter is bond together, discovered by the Greek scientist Archimedes.
To calculate the density of an object, Density = Mass/Volume
The density of the object is 1.65 g/mL, Volume of the water is 35.1 gallons
1 gallon = 3785.41 mL
35.1 gallons = 132868 mL
1 pound = 453.592 grams
So, 219232.2 grams = 483.32 pounds weight.
For more details regarding density, here
brainly.com/question/25038476
#SPJ1
The distance between Miami and Key Largo is 70. miles. If a mile is 5,280ft and 1 inch is 2.54 cm, calculate this distance in kilometers.
If the distance between Miami and Key Largo is 70 miles, this distance is equivalent to 112.65 kilometers.
What is distance?Distance is the amount of space between two points, usually geographical points, usually (but not necessarily) measured along a straight line.
According to this question, the distance between Miami and Key Largo is 70 miles.
Miles and kilometers are both units of measurement for distance. The conversion factor is as follows:
1 mile = 1.609 kilometres
70 miles is equivalent to 70 × 1.609 = 112.65 kilometers
Therefore, the distance between Miami and Key Largo is 70 miles, this distance is equivalent to 112.65 kilometers.
Learn more about distance at: https://brainly.com/question/13034462
#SPJ1
The partial electron configuration of an atom with 11 electrons is shown.
1s²2s²2p6x
Which of the following does X represent?
A. 3s¹
B. 2d¹
C. 3p¹
D. 4s¹
Answer:
This would be 3S^1.
Explanation:
It would be 3s^1 because that is how the orbitals are formed.
It would be form lowest to highest: s,p,d,f.
Then it would go to highest, 2 =s, 6=p, d =10, f= 14.
So, it would be: 1s2, 2s2, 2p6, 3s2.
Since 3s2 isn't on here, then 3s1 would become the answer.