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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

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?
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)?
A student prepares 100.0 cm3 of 0.100 mol/dm3 NaOH by diluting a 1.00 mol/dm3 stock. What volume of stock is needed (in cm3)?
A student dissolves mass m of solute of Mr 120 to make 250 cm3 of solution. Which expression gives the concentration in mol/dm3?
Which calculation gives the concentration in mol/dm3 when 0.250 mol of solute is dissolved to make 500 cm3?
A sample contains 0.00235 mol of reagent in 25.0 cm3. What is its 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?
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?
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?
Which unit is equivalent to mol/dm3?
What mass in grams of solute would give a 0.500 mol/dm3 solution if dissolved to make 250 cm3, for a substance with Mr = 120?