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WorksheetsAQA Chemistry Paper 1- Quantitative Chemistry
Total questions: 18
Worksheet time: 2hrs 30mins
C + O2 --> CO2
What amount (in moles) is present in 2.0 g of sodium hydroxide, NaOH?
0.050
0.10
20
80
Lithium hydroxide reacts with carbon dioxide as follows.
2LiOH + CO2 → Li2CO3 + H2O
What mass (in grams) of lithium hydroxide is needed to react with 11 g of carbon dioxide?
6
12
24
48
What is the law of conservation of mass?
Mass of products is more than mass of reactants
Mass of reactants is less than mass of products
Mass of reactants is equal to mass of products
1 dm3 is equal to how many cm3 ?
100
500
1000
2000
Choose a correct unit for concentration.
g
gdm
g/dm3
mol
A high mass of solute dissolved in a low volume of liquid would result in what type of solution?
Low Concentration
High Concentration
50g of sodium hydroxide is dissolved in water to make up 200cm3 . What is the concentration in dm3.
0.25 g/dm3
2.5 g/dm3
25 g/dm3
250 g/dm3
Give the equation for calculating concentration from the mass of substance and volume of solution.
Concentration = mass x volume
Concentration = mass ÷ volume
