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]
- Created by: SalemWitchcraft
- Created on: 25-03-21 17:53
Other questions in this quiz
2. If you burned 12g of carbon in excess oxygen, what mass of carbon dioxide would you expect to make?
- 44g of CO2
- 34g of CO2
- 40g of CO2
- 64g of CO2
3. Nitrogen and hydorgen react to form ammonia. If 84g of nitrogen was used, what is the mass of ammonia formed?
- 84g
- 102g
- 100g
- 120g
4. 240g of magnesium reacts with zinc sulfate. What is the mass of the zinc at the end?
- 650g of zinc
- 135.65g of zinc
- 350g of zinc
- 700g of zinc
5. If 56g of iron reacts with copper sulfate, what is the mass of 1 mole of copper?
- 63.5g
- 86g
- 45.3g
- 112g
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