gcsescience.com 31 gcsescience.com

Revision Questions

The best
way to remember the
information in this chapter

is to get a pen and paper and write down
your answers

before clicking on the Answer link which will take you to the
correct page.

You may have to read through some of
the page before you find the
answer.

If the answer you have written is
not right, change it to
the

correct answer by copying
down the information from the
correct page.

Moles - Masses | ||

1 | What does Mole mean? | Answer |

2 | What is Avogadro's Number? | Answer |

3 | What is a Mole defined as? | Answer |

4 | What does
A_{r} mean? |
Answer |

5 | What does RAM mean? | Answer |

6 | What is the Mass of one Mole of Sodium Atoms? | Answer |

7 | What is the Mass of one Mole of Magnesium Atoms? | Answer |

8 | What is the Mass of one Mole of Calcium Atoms? | Answer |

9 | What is the Mass of one Mole of Helium Atoms? | Answer |

10 | What is the Mass of one Mole of Neon Atoms? | Answer |

11 | What does RMM mean? | Answer |

12 | What is the Mass of one Mole of Nitrogen Molecules? | Answer |

13 | What is the Mass of one Mole of Oxygen Molecules? | Answer |

14 | What is the Mass of one Mole of Chlorine Molecules? | Answer |

15 | What does
M_{r} mean? |
Answer |

16 | What does RFM mean? | Answer |

17 | What is the Mass of one Mole of Carbon Dioxide? | Answer |

18 | What is the Mass of one Mole of Calcium Carbonate? | Answer |

19 | What is the Mass of one Mole of Magnesium Oxide? | Answer |

Converting | ||

20 | Give the Equation which Converts Mass into Moles. | Answer |

21 | How many Moles are there in 35 grams of Calcium Carbonate? | Answer |

22 | How many Moles are there in 125 grams of Carbon? | Answer |

23 | Give the Equation which Converts Moles into Mass. | Answer |

24 | How many grams are there in 42 Moles of Neon? | Answer |

25 | How many grams are there in 5·67 Moles of Carbon Dioxide? | Answer |

26 | Give the Equation which Converts Moles into Volume. | Answer |

27 | How many Coulombs are there in one Mole of Electrons? | Answer |

28 | Give the Equation which Converts Concentration into Moles. | Answer |

29 | How do you
Convert grams into mol/dm^{3}? |
Answer |

30 | How do you
Convert mol/dm^{3}
into grams? |
Answer |

Calculations | ||

Mass of a Product from a Reaction - Basic Method | ||

31 | 10g of Magnesium is Burned. What Mass of Magnesium Oxide is formed? | Answer |

32 | Give the Rules for the Basic Method of calculating a Mass of a Product. | Answer |

33 | 20g of Sodium is Burned. What Mass of Sodium Oxide is formed? | Answer |

Mass of a Product from a Reaction - Advanced Method | ||

34 | 10g of Magnesium is Burned. What Mass of Magnesium Oxide is formed? | Answer |

35 | Give the Rules for the Advanced Method of calculating a Mass of a Product. | Answer |

36 | 20g of Sodium is Burned. What Mass of Sodium Oxide is formed? | Answer |

The Percentage of an Element in a Compound | ||

37 | What is the Percentage of Carbon in Propene? | Answer |

38 | What is the Percentage of Calcium in Calcium Carbonate? | Answer |

The Empirical Formula of a Compound | ||

39 | What does Empirical mean? | Answer |

40 | 33·6g of Iron reacts with 14·4g of Oxygen. What is the formula of Iron Oxide? | Answer |

41 | 20g of Ca reacts with 35·5g of Cl. What is the formula of Calcium Chloride? | Answer |

42 | Which Compound has 3g of Carbon and 0·5g of Hydrogen if the RMM is 42? | Answer |

43 | Which Compound has 48g of Carbon and 12g of Hydrogen if the RMM is 30? | Answer |

Volumes of Gases | ||

44 | What does Avogadro's Law say? | Answer |

45 | Give the Equation which Converts Moles into Volume. | Answer |

46 | 6g of Carbon is Burned. What Volume of Carbon Dioxide is formed? | Answer |

47 | 90g of Ethane is Burned. What Volume of Carbon Dioxide is formed? | Answer |

48 | 6·5g of Zinc reacts with Sulfuric Acid. What Volume of Hydrogen is formed? | Answer |

49 | What is the Mass of 2 Litres of Chlorine? | Answer |

Masses and Volumes from Electrolysis | ||

A | Electrolysis of Molten Sodium Chloride | |

50 | What Mass and Volume of Chlorine are formed if 46g of Na are deposited? | Answer |

51 | Write and Balance the Half Equations for the Electrolysis. | Answer |

B | Electrolysis of Sodium Chloride in Water | |

52 | What Mass and Volume of Hydrogen are formed if 142g of Cl are discharged? | Answer |

53 | Write and Balance the Half Equations for the Electrolysis. | Answer |

C | Electrolysis of Molten Lead Bromide | |

54 | What is one Mole of Electrons called? | Answer |

55 | 10 Amps is passed for 5 Hours. What Mass of Lead is deposited? | Answer |

56 | Write the Half Equation for the Electrolysis. | Answer |

D | Electrolysis of Molten Aluminium Oxide | |

57 | 10 Amps is passed for 5 Hours. What Mass of Aluminium is deposited? | Answer |

58 | Write the Half Equation for the Electrolysis. | Answer |

Concentrations of Solutions | ||

59 | What is Concentration a measure of? | Answer |

60 | 50 cm^{3} of 2 mol/dm^{3} NaOH
neutralises 30 cm^{3} of what concentration HCl? |
Answer |

61 | 20 cm^{3} of 0·5 mol/dm^{3} NaOH
neutralises 40 cm^{3} of what concentration H_{2}SO_{4} |
Answer |

62 | What is the
Concentration in mol/dm^{3}
of 120g NH_{4}NO_{3} in
1 Litre of Water? |
Answer |

63 | What is the
Concentration in mol/dm^{3}
of 10·6g Na_{2}CO_{3} in
200 cm^{3} of Water? |
Answer |

64 | How many grams of NaOH are present in
500 cm^{3} of
0·8
mol/dm^{3}
NaOH_{(aq)}? |
Answer |

gcsescience.com The Periodic Table Index Moles Quiz gcsescience.com

**Home**
**GCSE Chemistry**
**GCSE Physics**

Copyright © 2015 gcsescience.com. All Rights Reserved.