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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

What is the volume in dm3 of 25.0 cm3 of solution?
A diluted sample has concentration 0.0250 mol/dm3. If the dilution factor from stock to sample was 1 in 20, what was the stock concentration?
If a saturated solution at a given temperature cannot dissolve any more solute, what happens to the concentration if extra solid solute is added?
A stock solution of 1.00 mol/dm3 is diluted by taking 10.0 cm3 and making up to 500 cm3. What is the concentration of the diluted solution?
A burette delivered 23.50 cm3 of 0.100 mol/dm3 Ba(OH)2. How many moles of hydroxide ions (OH–) were provided by that volume? (Ba(OH)2 provides 2 OH– per formula unit.)
25.0 cm3 of hydrochloric acid is neutralised by 20.0 cm3 of 0.100 mol/dm3 sodium hydroxide. What is the concentration of the hydrochloric acid in mol/dm3? (HCl + NaOH ? NaCl + H2O)
A student dissolves mass m of solute of Mr 120 to make 250 cm3 of solution. Which expression gives the concentration in mol/dm3?
A student finds 0.00470 mol of HCl in a titration of 25.0 cm3 sample. What is the concentration of HCl in mol/dm3?
You dissolve 4.50 g of KNO3 (Mr = 101.1) in water and make up to 250 cm3. What is the concentration in mol/dm3?
What is the concentration in mol/dm3 of a solution prepared by dissolving 10.0 g of glucose (Mr = 180) in 250 cm3 of water?
When converting concentration from mol/dm3 to g/dm3 you must multiply by the Mr. Which of these shows that conversion for a 0.150 mol/dm3 solution of a compound with Mr = 100?