Calculating the mass of a substance using moles

Short (ok- maybe not so short) calculation questions involving moles. Make sure to keep rough paper, pens and a periodic table with you and good luck! <3

REMINDER OF STEPS IF HELP NEEDED:

1. Write the word equation

2. Write a balanced symbol equation

3. Calculate the mole of the mass given

(number of moles = mass of substance/atomic mass)

3. Using your balanced equation, find the atomic mass of the compunds you need

4. Using the atomic masses of the compunds you found and the moles, work out the mass of the compound asked in the question

(mass= number of moles x atomic mass of substance)

[Write the steps down somewhere]

?
If you burned 12g of carbon in excess oxygen, what mass of carbon dioxide would you expect to make?
44g of CO2
1 of 5
If 56g of iron reacts with copper sulfate, what is the mass of 1 mole of copper?
63.5g
2 of 5
240g of magnesium reacts with zinc sulfate. What is the mass of the zinc at the end?
650g of zinc
3 of 5
If 50g of calcium carbonate is heated, how much calcium oxide is formed?
28g
4 of 5
Nitrogen and hydorgen react to form ammonia. If 84g of nitrogen was used, what is the mass of ammonia formed?
102g
5 of 5

Other cards in this set

Card 2

Front

If 56g of iron reacts with copper sulfate, what is the mass of 1 mole of copper?

Back

63.5g

Card 3

Front

240g of magnesium reacts with zinc sulfate. What is the mass of the zinc at the end?

Back

Preview of the front of card 3

Card 4

Front

If 50g of calcium carbonate is heated, how much calcium oxide is formed?

Back

Preview of the front of card 4

Card 5

Front

Nitrogen and hydorgen react to form ammonia. If 84g of nitrogen was used, what is the mass of ammonia formed?

Back

Preview of the front of card 5

Comments

shamzyy

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thanks for this! I finally started to understand stoichiometry for the first time

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