STOI SS Standard Solutions New - Contents
- Page 1Introduction - ReviewTwo pages introducing first the idea that many reactions are carried out in solution, second, techniques used to prepare standard solutions and third the calculations required to determine the mass of substance required.
- Page 2Calculating the mass of solid needed - Review
- 9 marksPage 3Problem 1Calculate the mass in grams of H2C2O4·2H2O required to prepare 100 mL of 0.100 mol L–1 H2C2O4.
- 9 marksPage 4Problem 2Calculate the mass in grams of Na2CO3·10H2O required to prepare 250 mL of 0.100 mol L–1 Na2CO3.
- Page 5Practical - ReviewThis shows the experimental procedure for preparing a standard solution including weighing and dissolving the sample using a volumetric flask
- 6 marksPage 6QuestionsThese two pages focus on both the glassware required and the various steps of the experimental process and how the calculated concentration can depend (or not) how the preparation of the solution is carried out.
- 6 marksPage 7Using the appropriate glassware
- Page 8Calculations - ReviewThis details the relationships used in calculating concentration of a standard solution.
- 8 marksPage 9Problem 3Calculate the concentration of H2C2O4 in mol L–1 if 3.00 g H2C2O4·2H2O are dissolved in water to make 250.0 mL of solution.
- 8 marksPage 10Problem 4Calculate the concentration of Na2CO3 in mol L–1 if 3.00 g Na2CO3·10H2O are dissolved in water to make 100.0 mL of solution.