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Tutor HuntTest QuestionsChemistry QuestionsYear 10 Chemistry Questions

 

Chemical Measurements (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Chemical Measurements' from the broader topic Quantitative Chemistry. The test is geared towards the AQA exam board style syllabus.
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A solution of NaCl has concentration 0.602 mol/dm3. What mass (g) of NaCl is present in 0.500 dm3? (Mr NaCl = 58.5)
25.00 cm3 of hydrochloric acid is titrated with 23.50 cm3 of 0.100 mol/dm3 barium hydroxide. The reaction is 2HCl + Ba(OH)2 ? BaCl2 + 2H2O. What is the concentration of HCl?
What colour does universal indicator show in a strong alkali such as potassium hydroxide?
What is the molar volume (dm3) of 0.250 mol of gas at room temperature and pressure (1 mol = 24 dm3)?
Calculate the relative formula mass (Mr) of calcium carbonate, CaCO3 (Ar: Ca = 40.1, C = 12.0, O = 16.0).
What volume (in dm3) of CO2 is produced by 4.80 g of CO2 at room temperature and pressure? (Mr CO2 = 44.0; 1 mol gas = 24 dm3)
Neon has three isotopes with abundances 90.48% (20), 0.27% (21) and 9.25% (22). What is the relative atomic mass (Ar) of neon (to two decimal places)?
A flask contains 25.00 cm3 of 0.100 mol/dm3 acid. How many moles of acid are present?
What is the percentage by mass of iron in Fe3O4? (Ar: Fe = 56.0; O = 16.0)
Which of the following is the correct expression for percentage yield?
What volume (in dm3) of any gas at room temperature and pressure is produced by 0.500 mol of the gas? (Use 1 mol = 24 dm3)