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Tutor HuntTest QuestionsChemistry QuestionsYear 10 Chemistry Questions

 

Concentration Of Solutions (GCSE Chemistry)

The following is a GCSE Chemistry test covering 'Concentration Of Solutions' from the broader topic Quantitative Chemistry. The test is geared towards the AQA exam board style syllabus.
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Below a typical questions that will be covered in this test. You final score will be logged on your account

How many cm3 of final solution are needed to dilute 50.0 cm3 of 0.500 mol/dm3 solution to 0.100 mol/dm3?
What is the volume in dm3 of 25.0 cm3 of solution?
A solution contains 35.0 g/dm3 NaCl. Sodium is 39.34% by mass of NaCl. What is the concentration of sodium (g/dm3) in the solution?
5.85 g of NaCl (Mr = 58.5) is dissolved to make 500 cm3 of solution. What is the concentration in mol/dm3?
If a saturated solution at a given temperature cannot dissolve any more solute, what happens to the concentration if extra solid solute is added?
Which unit is equivalent to mol/dm3?
Which calculation gives the concentration in mol/dm3 when 0.250 mol of solute is dissolved to make 500 cm3?
A student titrates 25.00 cm3 of HCl with 23.50 cm3 of 0.100 mol/dm3 Ba(OH)2. Using 2HCl + Ba(OH)2 ? BaCl2 + 2H2O, what is the concentration of HCl (mol/dm3)?
Why should all volumes be expressed in dm3 when using the relation concentration (mol/dm3) = moles ÷ volume?
How many particles (molecules) are present in 0.250 mol of a substance? (Use Avogadro’s number 6.02×10^23)
When carrying out a titration, the burette reading is recorded as 12.35 cm3 at start and 35.75 cm3 at end. What volume of titrant was delivered?