Login
Login
Login
Register

Tutor HuntTest QuestionsChemistry QuestionsYear 10 Chemistry Questions

 

Using Moles To Balance Equations (ht Only) (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Using Moles To Balance Equations (ht Only)' from the broader topic Quantitative Chemistry. The test is geared towards the AQA exam board style syllabus.
Start Test
Incorrect: 0
Correct: 0
Question 1
...
Congratulations - you have completed the test!
Your final score was

Below a typical questions that will be covered in this test. You final score will be logged on your account

0.250 mol solute is dissolved in 500 cm3 solution. What is the concentration in mol/dm3?
2Al + 3CuO ? Al2O3 + 3Cu. If 54.0 g CuO reacts with excess Al, what mass of Cu forms? (Ar Cu 63.5, CuO Mr 79.5)
In Fe3O4 what is the percentage by mass of iron? (Ar Fe 56, O 16)
2Mg + SiO2 ? 2MgO + Si. What minimum mass of Mg (g) is needed to completely reduce 1.20 kg SiO2? (Ar: Mg 24, Si 28, O 16)
2H2 + O2 ? 2H2O. If 3.50 dm3 H2 is reacted completely with excess O2 at RTP, how much air (dm3) is needed if air is 20% oxygen by volume?
2Al + 3CuSO4 ? Al2(SO4)3 + 3Cu. If you have 0.500 mol CuSO4, how many moles Al are required?
When 0.500 mol of gas at RTP occupies 12.0 dm3, what is the molar volume assumed in the calculation?
CaCO3 ? CaO + CO2. If 48.0 dm3 CO2 (RTP, 1 mol gas = 24.0 dm3) is collected, what mass of CaCO3 was decomposed? (Mr CaCO3 = 100.0)
Mg + 2HCl ? MgCl2 + H2. If 0.0200 mol Mg reacts fully, what volume (dm3) of H2 is formed at RTP (1 mol gas = 24.0 dm3)?
50.0 cm3 of 0.200 mol/dm3 NaCl contains how many moles of NaCl?
A theoretical yield of a product is 10.0 g but the actual mass obtained is 7.50 g. What is the percentage yield?