Stoichiometry- Mole Ratios

Mole

100

What is a mole?

a word that represents a number.

200

How are moles abbreviated?

mol

300

What is the unit of molar mass?

g/mol

400

What is a molar mass of water? (H₂O)

18 g/mol

500

What is molar mass of C₆H₁₂O₆ compound?

180 g/mol 

Moles -> Grams

100

How many grams are in 1 mole of carbon?

12.01g of carbon

200

What is the mass in grams of 5.90 mol C8H18?

673 g

300

Calculate how many grams are in 2.5 mols of H2O2

85 grams of H2O2

400

If you have 4 moles of chromium, how many grams of chromium do you have?

207.96g of chromium

500

How many grams are in 0.523 mol of AlPO4?

63.78 g AlPO4

Mole Ratio 1

100

2 C2H6 + 7 O2 → 4 CO2 + 6 H2O

Ethane (C2H6) combusts in the above reaction. What is the mole ratio of ethane to oxygen gas?

2:7

200

Which of the following represent a mole ratio between silver nitrate and copper(II) nitrate in the following reaction:
2AgNO3 + Cu --> Cu(NO3)2 + 2Ag

2:1

300

N2 + 3H2 → 2NH3

What is the mole ratio between N2 and NH3 in the above reaction?

1:2

400

48.4 mols of NH3 are reacted with an excess of oxygen, how many moles of NO are formed? 4NH3+5O2-> 4NO+6H2O

48.4 mol

500

How many moles of lithium hydroxide are required to react with 20 mol CO2, the average amount exhaled by a person each day?

2LiOH + CO₂ -> Li₂CO₃ + H₂O

40 mol LiOH

Grams ->Moles

100

If you have 195.5 g of potassium, how many moles do you have?

5 moles of potassium

200

Convert 25.0 grams of KMnO4 to moles.

0.158 mol

300

Calculate how many moles are in 17.0 grams of H₂O₂

2 moles of H₂O₂

400

How many grams are in 0.523 mol of AlPO4?

63.78 g of AlPO4

500

How many grams are equal to 0.11 mole of copper (I) chromate, Cu2(CrO4)?

26.74 g of Cu2(CrO4)

Mole ratio 2

100

Using the following equation: Fe2O3(s) + 3H2(g) → 2Fe(s) + 3H2O(l) 

How many moles of iron can be made from  6 moles H2?

4 moles of Fe

200

2K + S -->K2S

What is the total number of moles of sulfur needed to react with 9 moles of potassium?

4.5 moles

300

6CO2 + 6H2O --> C6H12O6 + 6O2

How many moles of glucose(C6H12O6) can be produced from 6 moles of water?

1 mol of glucose

400

4NH3 + 5O2-->4NO + 6H2O

How many moles of NO will be produced from 3 moles of oxygen gas?

2.4 mols of Oxygen gas

500

Use the balanced equation to answer the following question. How many moles of of oxygen (O2) are produced when 8.56 moles of potassium chlorate

{ K(ClO3) } decomposes completely.

2K(ClO3) -----> 2KCl + 3O2

12.84 moles of O2