Moles

Revision Questions

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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 Ar 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 Mr 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/dm3? Answer
30 How do you Convert mol/dm3 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 cm3 of 2 mol/dm3 NaOH neutralises 30 cm3 of what concentration HCl? Answer
61 20 cm3 of 0·5 mol/dm3 NaOH neutralises 40 cm3 of what concentration H2SO4 Answer
62 What is the Concentration in mol/dm3 of 120g NH4NO3 in 1 Litre of Water? Answer
63 What is the Concentration in mol/dm3 of 10·6g Na2CO3 in 200 cm3 of Water? Answer
64 How many grams of NaOH are present in 500 cm3 of 0·8 mol/dm3 NaOH(aq)? Answer

 

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