I have a chemistry writing promp but it’s asking questions here the prompt: What is the empirical formula if you have 36.84% nitrogen and 63.16% oxygen? State three potential molecular formulas from the empirical formula in A. If the molecular formula mass in A is 760 grams/mol, what is the molecular formula? WIll the molecular and empirical formulas in A and D have the same characteristics? Why or why not?

Answers

Answer 1

Explanation:

1. Find the empirical formula of a compound that has 36.84% of Nitrogen (N), 63.16% of Oxygen (O).

Secondly, Find molar mass of each component: N=14.0067, O=15.9994

Thirdly, convert to moles: N=2.6301698472874, O=3.9476480368014

Then find smallest mole value: 2.6301698472874

Divide all components my smallest value: N=1, O=1.5009099282591

Then divide by fractional component of each mole value: N=1.9963668986866, O=2.9963668986866

Round to closest whole numbers: N=2, O=3

Lastly, combine to get the empirical formula:N2O3


Related Questions

Under each photo,
write an example of where you
might find water in that state of
matter.


Answers

Answer:

Explanation:

water vapor:in a cloud or when you breath out once it's cold.Ice: in your freezer or on a frozen lake.liquid water:at a stream

Elements in a convolent bond are called ?

Answers

Answer:

A covalent bond is formed by an equal sharing of electrons from both the participating atoms. The pair of electrons participating in this type of bonding is called shared pair or bonding pair. The covalent bonds are also termed molecular bonds.

My feet get hot as soon as I touch the sand. What kind of heat transfer occurred?

Answers

Conduction is the correct Answer
please mark brainliest

Please help! Find the distance to each destination in AU. Use the correct conversion factor.

Answers

Explanation:

The question involves converting from one unit (Kilometres) to another unit (Astronomical unit)

The relationship between both units is given as;

1 Km = 6.68459e-9 Au

Kulper belt

6.5 billion km = 6.5e9 Km

1 Km = 6.68459e-9 Au

6.5e9 Km = x

Solving for x;

x = 43.45 Au

Alpha Centauri

44 trillion km = 4.4e13

1 Km = 6.68459e-9 Au

4.4e13 km = x

Solving for x;

x = 294121.83 Au

calculate the [H+] if the [OH-] is 7.34x10^-10
pls show work

Answers

[H+] if the [OH-] is 7.34x10^-10

Why is chemistry important? i need 2 paragraph please

Answers

It is important because 1 plus one is 2 and 2 plus 2 is 4

How many molecules are in 41.8 g H2O?

Answers

Answer:

7.63 × 10²³ molecules

Explanation:

First, convert grams to moles using the molar mass of water (32.988 g/mol).

41.8 g  ÷  32.988 g/mol  =  1.267 mol

Next, convert moles to molecules using Avogadro's number (6.022 × 10²³).

1.267 mol  ×  6.022 × 10²³ molecules/mol = 7.63 × 10²³ molecules

Why is it not possible to extract aluminium by heating its ore with carbon?

Answers

Aluminium is higher than carbon in the reactivity series, so aluminium can only be extracted using electrolysis


2 HCl (9)
=H2(g) + Cl2 (9)
K = [H][CI]/[HCI)
UK = [H][CI]/2[HCI]
K = 2[HC]/[H]CI.)
K = [HCI)?/[H][1]

Answers

Answer:

(K) = [H2] [Cl2]  /  [HCl]²

Explanation:

The equation of the reaction is given as;

2 HCl (g)  ⇔ H2 (g) + Cl2 (g)

The Equilibrium constant is the ratio of the concentration of the products and reactants raised to the power of their coefficients

Products =  H2 and Cl2

Reactants =  HCl

Equilibrium constant (K) = [H2] [Cl2]  /  [HCl]²

What should you do with a chemical burn?

A. use butter on the burn, bandage, and send the employee home to rest

B. use ice on the burn, bandage, and send the employee to the hospital

C.do not touch the victim, keep the victim quiet and call for medical assistance

D. call for medical assistance and check the MSDS for emergency interventions

Answers

Answer:

C. do not touch the victim keep the victim quiet and call dor medical assistance

Answer:

D.

Explanation:

MSDS if available should have tx instructions once a call for emergency medical assistance has been made

K(s)+H2SO4(aq)
——>_____+______

Answers

K2SO4 + H2

Reason :Potassium is highly reactive

Answer:

K2SO4 + H2 this is the reaction.

7. H3PO4 →
H4P207+
H20
Balance the equation

Answers

This should hopefully help

2H³PO⁴ --> H⁴P²O⁷ + H²O

Does sanitizer conduct electricity

Answers

Answer:

Yes, since it has alcohol, it conducts electricity.

Which of the following factors would affect the rate at which the stages of death happen

A.Humidity
B.Temperature
C.If the person was sick
D.All of the choice would affect the rate

Answers

All of the choices would affect the rate
D. all of the choices

(Help would be greatly appreciated) What is the molarity of a solution made from 325.4g of AlCl3 with enough water to make 500.0mL?
1. 4.88g
2. 4.88M
3. 2.440M
4. 2.44M

Answers

Answer:

4.88 M

Explanation:

M = number moles/Volume (L)

MM AlCl3 = 133.34 g/mol

Volume = 500 mL = 0.5 L

number moles = mass/MM = 325.4/133.34 = 2.44 moles AlCl3

M = 2.44/0.5 = 4.88 M

If I touch a hot object, my hand gets hot through which type of heat transfer?

Answers

Answer:

Thermal Transfer.

Explanation:

If you touch a hot object, the heat is transferred from the object to your hand through conduction. (This is the actual answer.)

Identify the shape below:
PLEASE HELP

Answers

Answer:

linear angleee

Explanation:

lol i dont know what to put here

Answer:

B) Bent

There are a lot of types of bents but this one is linear bent.

Please help me on this.

Answers

True will end up being the answer

Answer: true

Explanation:

i hope this helps

Another alloy called nichrome contains only the elements chromium and nickel how much nickel dies it have

Answers

Answer:

80 g

Explanation:

Alloy = nichrome

100 g of nichrome contains 20 g of chromium

Contains only two elements (Nickel and Chromium) hence;

Mass of Alloy = Mass of Nickel + Mass of Chromium

100 = Nickel + 20g

Nickel = 100 g - 20 g = 80 g

what physical properties does lithium have

Answers

Answer:

Lithium has a melting point of 180.54 C, a boiling point of 1342 C, a specific gravity of 0.534 (20 C), and a valence of 1. It is the lightest of the metals, with a density approximately half that of water. Under ordinary conditions, lithium is the least dense of the solid elements.

Appearance: soft, silvery-white metal

Atomic Number: 3

Atomic Radius (pm): 155

CAN SOMEONE PLEASE HELP ME WITH THIS?!!!!

Answers

Answer:

1. A. 9 eggs

2. B. 5:3

3. C. Exactly 44 g

4. C. Mass and atoms only

5. D. 6.81 g of PH₃

6. C. 88.4%

7. B. O₂

8. D. 30.8 g CO₂

9. B.

10. B.

11. C. 99 g

12. D. mole ratio

13. C. Theoretical

14. A. 6.0 mol H₂O

15. D. 39.7 g CH₃OH

16. A. 650 g HgO

17. D. 8.8 mol H₂

18. B. 82.6%

Explanation:

1. The number of eggs it takes to make 1 cake = 3 eggs

The number of eggs it takes to make 3 × 1 = 3 cake = 3 × 3 = 9 eggs

Therefore, the correct option is;

A. 9 eggs

2. The given reaction is presented as follows;

C₃H₈(g) + 5O₂(g) → 3CO₂(g) + 4H₂O(l)

In the above reaction, we have;

Moles of , O₂, reacted = 5 moles

Moles of , CO₂, produced = 3 moles

The ratio of the of O₂ reacted to moles of CO₂ produced = 5 moles:3 moles

∴ The ratio of the of O₂ reacted to moles of CO₂ produced = 5:3

The correct option is;

B. 5:3

3. The reaction is presented as follows;

O₂ (g) + C(s) → CO₂ (g)

From the reaction, 1 mole (12 g) of carbon produces 1 mole of CO₂

The molar mass of CO₂ = The mass of 1 mole of CO₂ = 44.01 g/mol

Given that the reaction is completed, the mass of CO₂ produced = The mass of 1 mole of CO₂ ≈ 44 g

The correct option is;

C. Exactly 44 g

4. The given reaction is presented as follows;

N₂ + 3 F₂ → 2NF₃

The initial number of atom = 2 + 6 = 8

The final number of atom = 2 × 4   = 8

∴ The initial number of atom = The final number of atom

Therefore, the number of atoms is conserved;

The mass of the reactants ≈ 28 g/mol + 3 × 37.996806 g/mol ≈ 141.993612 g/mol ≈ 142 g/mol

The mass of the product ≈ 2 × 71 g.mol = 142 g/mol

∴ The mass is conserved

Moles of reactants = 1 + 3 = 4

Moles of products = 2

∴ The number of moles is not conserved

The correct option is

C. Mass and atoms only

5. The molar mass of P₄ = 123.895048 g/mol

One mole of P₄ (123.895048 g) produces four moles (4 × 34.00) of PH₃

6.20 g of P₄. will produce (4 × 34.00)/(123.895048) × 6.20 g ≈ 6.80576 g ≈ 6.81 g

The correct option is D. 6.81 g of PH₃

6. The percentage yield = ((The actual yield)/(The ideal yield)) × 100

The actual yield of silver = 38.1 g

The ideal yield of silver = 43.1 g

∴ The percentage yield = ((38.1 g)/(43.1 g)) × 100 = 88.3990719258% ≈ 88.4%

The percentage yield = 88.4%

The correct option is C. 88.4%

7. The given chemical equation is presented as follows;

CS₂ (g) + 3 O₂ (g) → CO₂ (g) + 2 SO₂ (g)

The number of moles in 192 g of O₂ = 192 g/(32 g/mol) = 6 moles

Given that 3 moles of O₂ reacts with 1 mole of CS₂ to produce 1 mole of CO₂ and 2 moles SO₂,  therefore 2 × 3 = 6 moles of O₂ will reacts with 2 × 1 = 2 moles of CS₂ to produce 2 moles of CO₂ and 4 moles SO₂

∴ The limiting reactant is;

B. O₂

8. The given chemical equation is presented as follows;

2 C₈H₁₈ (g) + 25 O₂ (g) → 16 CO₂ (g) + 18 H₂O (l)

The number of moles in 10 g of C₈H₁₈, n₁ = (10 g)/(114.26 g/mol)

The number of moles of CO₂ produced, n₂ = (10 g)/(114.26 g/mol) × 16/2 ≈ 0.7 moles

The mass of CO₂ produced, m ≈ 44.01 × n₂ ≈ 44.01 g/mol × 0.7 moles ≈ 30.807 grams ≈ 30.8 grams

The theoretical yield of CO₂ from completely burning 10.0 g of C₈H₁₈ ≈ 30.8 grams of CO₂

The correct option is D. 30.8 g CO₂

9. The correct option is B. The limiting reactants determine the maximum amount of product that can be formed

10. Option B, which has 3 atoms of each element combining to form a product with 1 atom of one element and 2 atoms of the other element

The correct option is B.

11. By the conservation of mass, we have;

The mass of the reactants = The mass of the products

Let 'x' represent the mass of zinc in the products of the reaction

Therefore, we have;

61 g of calcium + 207 g of zinc chloride = 169 g of calcium chloride + x g of Zinc

∴  x g = 61 g + 207 g - 169 g = 99 g

The mass of zinc in the products of the reaction, x g = 99 g

The correct option is;

C. 99 g

12. The quantity that must be used to convert from one chemical substance to another is the mole ratio

The correct option is D. mole ratio

13. The maximum mass of the product that could form in a reaction is called the theoretical yield, which is option C.

The correct option is C. Theoretical

14. 1 mole of O₂ produces 2 moles of water (H₂O), therefore;

3 × 1 = 3.0 moles of O₂ will produce 3 × 2 = 6 moles of H₂O

The correct option is

A. 6.0 mol H₂O

15. 2 mole × 2.02 g/mol = 4.04 g of H₂ (g) produces 32.05 g CH₃OH (l)

∴ 5 g of H₂ (g) will produce 32.05 g × 5/4.04 ≈ 39.6658416 g ≈ 39.7 g of CH₃OH

The correct option is;

D. 39.7 g CH₃OH

16. 2 (2 × 216.59 g = 433.18 g) moles of HgO produces 1 mole of O₂

1.5 mole of O₂ will be produced by 1.5 × 2 = 3 moles (3 × 216.59 g = 649.77 g ≈ 650 g) of HgO

The correct option is A 650 g HgO

17. 3 moles of H₂ produces 2 moles of NH₃

The number of moles of NH₃ in 100 g of NH₃, n = 100 g/(17.04 g/mol) = 5.868544 moles

The number of moles of H₂ that will produce 5.868544 moles of NH₃ = 3/2 × 5.868544 moles = 8.802816 moles ≈ 8.8 moles

Therefore, the correct option is;

D. 8.8 mol H₂

18. The theoretical yield of PbO = (223.2/331.2) × 9.90 g = 6.67173913 g

The percentage yield = (5.51 g)/(6.67173913 g) × 100 ≈ 82.6%

The correct option is option B 82.6%.

specific heat is defined as the amount of heat in what

Answers

Answer:

Specific heat is the amount of energy that must be added, in the form of heat, to one unit of mass of the substance in order to cause an increase of one unit in temperature.

Explanation:

Answer:

Specific heat is the amount of energy that must be added, in the form of heat, to one unit of mass of the substance in order to cause an increase of one unit in temperature.

Explanation:

3. What tool do we use to measure force?

Answers

Spring Scale or a force gauge

Answer:

A force meter

Cart A has a mass of 24 kg and is being pulled with a force of 32 N. Cart B has a mass of
27 kg and is being pulled with a force of 33 N. Which cart will have the faster acceleration?

Answers

Cart b because it has greater force and higher mass

How many moles are in 281 g of Ca(OH)2?

Answers

Answer:

3.79 moles

Explanation:

To convert moles to gams of a substance we need to find the molar mass of the substance. For Ca(OH)₂ th molar mass is:

1Ca = 40.08g/mol

2O = 2*16g/mol = 32g/mol

2H = 2*1.01g/mol = 2.02g/mol

The molar mass is:

40.08g/mol + 32g/mol + 2.02g/mol = 74.1g/mol

And moles are:

281g * (1mol / 74.1g) =

3.79 moles

Can someone please help I need help?!?!

Answers

Answer:

a: 6 moles

b: 6.75 moles

c: 5 grams

Explanation:

a: mole ratio 2:3

b: mole ratio 2:3

c: mole ratio 2:2

The chemical formula of aspirin is C9H8O4. What is the mass of 0.40 mol
of aspirin?​

Answers

Answer:

[tex]\boxed {\boxed {\sf About \ 72 \ grams }}[/tex]

Explanation:

To convert from moles to grams, we must use the molar mass (also known as the gram formula mass).

First, look up the molar masses of the elements in the formula.

C: 12.011 g/mol H: 1.008 g/mol O: 15.999 g/mol

Next, multiply by the subscript, because it tells us the number of atoms of each element in the formula.

C₉: 4(12.011 g/mol)= 108.099 g/mol H₈: 8(1.008 g/mol)= 8.064 g/mol O₄: 4(15.999 g/mol)= 63.996 g/mol

Add the values.

108.099 + 8.064+63.996=180.159 g/mol

Use this molar mass as a ratio.

[tex]\frac {180.159 \ g \ C_9H_8O_4}{1 \ mol \ C_9H_8O_4}[/tex]

Multiply by the given number of moles, 0.40

[tex]0.40 \ mol \ C_9H_8O_4 *\frac {180.159 \ g \ C_9H_8O_4}{1 \ mol \ C_9H_8O_4}[/tex]

The units moles of aspirin cancel.

[tex]0.40 *\frac {180.159 \ g \ C_9H_8O_4}{1 }[/tex]

[tex]72.0636 \ g \ C_9H_8O_4[/tex]

The original number of moles has 2 sig figs (4 and 0), so answer must have the same. For the number we calculated, it is the ones place. The 0 in the tenth place tells us to leave the 2.

[tex]72 \ g[/tex]

If the mass of all the reactants in a chemical reaction is 100g, what will the mass of all products be?

Answers

HUNDRED GRAMS too because of the law of conservation of mass. The law of conservation of mass states that mass is neither created nor destroyed. So both sides will have the same mass

Plants and animals require large amounts of water in order to survive. Although vast numbers of plants and animals have lived throughout time, the amount of water in our environment has remained relatively constant. Which of the following statements explains why this occurs?


A. Water continually flows from the center of Earth.
B. Vast quantities of water are created by lightning in clouds.
C. Organisms return water to the environment after they use it.
D. Organisms combine hydrogen and oxygen to make their own water.
please help me

Answers

Answer: C - Organisms return water to the environment after they use it.

Explanation: The amount of water on earth will always remain the same. Water goes in and out of all organisms. It is not possible to be more or less.

5. What is characteristic of an opaque object.​

Answers

Not transparent, opaque objects don’t reflect light nor let light through
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