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Amounts Of Substances In Equations (ht Only) (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Amounts Of Substances In Equations (ht Only)' from the broader topic Quantitative Chemistry. The test is geared towards the AQA exam board style syllabus.
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Question 1
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Below a typical questions that will be covered in this test. You final score will be logged on your account

Which conversion is correct? 500 cm3 = ?
What volume (in dm3) does 0.50 mol of an ideal gas occupy at room temperature and pressure (take 1 mol = 24.0 dm3)?
The reaction: 2 A + 3 B ? 4 C. If you start with 0.500 mol A and an excess of B, how many moles of C can be formed?
What is the concentration (in mol/dm3) of a solution containing 0.0150 mol solute in 50.0 cm3?
What is the number of moles in 40.0 cm3 of a 0.250 mol/dm3 solution?
How many moles of H2 are in 4800 cm3 (4.800 dm3) of gas at room temperature and pressure (1 mol = 24.0 dm3)?
Which relative atomic mass (Ar) corresponds to element with isotopic data: mass-6 (7.6%), mass-7 (92.4%)? Give answer to 1 decimal place.
What is the formula mass (Mr) of CaCO3? (Ar: Ca = 40.1, C = 12.0, O = 16.0)
Calculate the empirical formula of a compound that contains 40.0% C, 6.7% H and 53.3% O by mass. (Use atomic masses C=12, H=1, O=16.)
Convert 250 cm3 into dm3.
A sample of gas has 3.01 × 10^22 molecules. How many moles is this?