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

In Fe3O4 what is the percentage by mass of iron? (Ar Fe 56, O 16)
Fe + 2HCl ? FeCl2 + H2. If 5.00 g Fe reacts with excess HCl, what volume of H2 (dm3) is produced at RTP (1 mol gas = 24.0 dm3)? (Ar Fe 56.0)
A compound has mass composition 40.0% C, 6.7% H and 53.3% O by mass. What is its empirical formula?
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)?
A theoretical yield of a product is 10.0 g but the actual mass obtained is 7.50 g. What is the percentage yield?
For N2 + 3H2 ? 2NH3, if 10.0 dm3 H2 reacts with excess N2 at RTP, what volume NH3 (dm3) is formed?
A sample of product shows actual mass 24.6 g when theoretical mass was 30.0 g. What is percentage yield?
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?
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)
2Na + Cl2 ? 2NaCl. If 46.0 g sodium reacts with excess chlorine, what mass of NaCl is formed? (Ar: Na 23.0, Cl 35.5)