1. Water 3 Table G Practice First, cross out the Y axis label on table G Replace it with: Number of grams of Solute per 100 mL of water

2. Are these solutions SATURATED or UNSATURATED? If they are unsaturated, how many more grams of solute would fit into the solution? Temp Mass of solute Solute Saturated or unsaturated How much more solute fits? 30°60gHCl ?? 60° 90° 20° 5°

3. Temp Mass of solute Solute Saturated or unsaturated How much more solute fits? 30°60gHClUnsaturatedAbout 7 g 60° 90° 20° 5° three

4. Temp Mass of solute Solute Saturated or unsaturated How much more solute fits? 30°60gHClUnsaturatedAbout 7 g 60°100gKNO 3 ?? 60° 90° 20° 5° four

5. Temp Mass of solute Solute Saturated or unsaturated How much more solute fits? 30°60gHClUnsaturatedAbout 7 g 60°100gKNO 3 unsaturatedAbout 5 g 60° 90° 20° 5° five

6. Temp Mass of solute Solute Saturated or unsaturated How much more solute fits? 30°60gHClUnsaturatedAbout 7 g 60°100gKNO 3 unsaturatedAbout 5 g 60°125gNaNO 3 ?? 90°10 gNH 3 ?? 20° 5° six

7. Temp Mass of solute Solute Saturated or unsaturated How much more solute fits? 30°60gHClUnsaturatedAbout 7 g 60°100gKNO 3 unsaturatedAbout 5 g 60°125gNaNO 3 SaturatedZero 90°10 gNH 3 Saturatedzero 20° 5° seven

8. Temp Mass of solute Solute Saturated or unsaturated How much more solute fits? 30°60gHClUnsaturatedAbout 7 g 60°100gKNO 3 unsaturatedAbout 5 g 60°125gNaNO 3 SaturatedZero 90°10 gNH 3 Saturatedzero 20°30gKCl ?? 5°36gNaCl ?? eight

9. Temp Mass of solute Solute Saturated or unsaturated How much more solute fits? 30°60gHClUnsaturatedAbout 7 g 60°100gKNO 3 unsaturatedAbout 5 g 60°125gNaNO 3 SaturatedZero 90°10 gNH 3 Saturatedzero 20°30gKClUnsaturatedAbout 3 g 5°36gNaCl nine

10. Temp Mass of solute Solute Saturated or unsaturated How much more solute fits? 30°60gHClUnsaturatedAbout 7 g 60°100gKNO 3 unsaturatedAbout 5 g 60°125gNaNO 3 SaturatedZero 90°10 gNH 3 Saturatedzero 20°30gKClUnsaturatedAbout 3 g 5°36gNaClUnsaturatedAbout 2 g ten

11. 1. How many grams of potassium nitrate saturates 100 mL water at 60°C? 2. Could you dissolve 130 g potassium nitrate into 100 mL of this water? 3. Could you dissolve 40 g NaCl into 100 mL water at 70 °C? 4. What’s the saturation level for sodium chloride in 100 mL of 70 °C aqueous solution? THINK hard, look hard, write down 4 answers

12. 1. How many grams of potassium nitrate saturates 100 mL water at 60°C? About 107 grams 2. Could you dissolve 130 g potassium nitrate into 100 mL of this water? No, it’s saturated by 107 grams 3. Could you dissolve 40 g NaCl into 100 mL water at 70 °C? No, it’s saturated at 38 grams 4. What’s the saturation level for sodium chloride in 100 mL of 70 °C aqueous solution? About 38 grams

13. Assume you have a saturated 100 mL aqueous solution of KClO 3 at 50°C. What happens if you cool it to 45°C? Start at fifty Cool to forty

14. Assume you have a saturated 100 mL aqueous solution of KClO 3 at 50°C. What happens if you cool it to 45°C? Start at fifty 22 grams of KClO 3 fits into solution. Cool to forty Only 15 grams KClO 3 fits at this cooler temperature 7 grams precipitates out of solution.

15. Easy question first, then another, then a harder one. Assume you have a 100 mL saturated solution of NaNO 3 at 20°C, and you warm it up to 50°C. How much more solute will be able to dissolve? How many grams of ammonia will dissolve into 100 mL water at 90°C? How many grams of ammonia will dissolve into just 40 mL water at the same temperature?

16. Assume you have a 100 mL saturated solution of NaNO 3 at 20°C, and you warm it up to 50°C. How much more solute will be able to dissolve? At 50 degrees about 115 g At 20 degrees about 88 g 27 more grams could dissolve into the warmer solution How many grams of ammonia will dissolve into 100 mL water at 90°C? How many grams of ammonia will dissolve into just 40 mL water at the same temperature?

17. Assume you have a 100 mL saturated solution of NaNO 3 at 20°C, and you warm it up to 50°C. How much more solute will be able to dissolve? At 50 degrees about 115 g At 20 degrees about 88 g 27 more grams could dissolve into the warmer solution How many grams of ammonia will dissolve into 100 mL water at 90°C? 10 grams How many grams of ammonia will dissolve into just 40 mL water at the same temperature? 90°C Ammonia water 10 g 100 mL X g 40 mL = 100 x = 400 X = 4 g ammonia

18. How many grams NaCl dissolves into 43 mL water at 90°C? How many grams sodium nitrate saturates 1000 mL water at 10°C?

19. How many grams NaCl dissolves into 43 mL water at 90°C? 90°C NaCl water 40g 100 mL X g 43 mL 100 x = 1720 X = 17.2 grams = 17 grams with 2 SF

20. How many grams sodium nitrate saturates 1000 mL water at 10°C? 10°C NaNO 3 water 80g 100 mL X g 1000 mL 100 x = 80000 X = 800 grams

21. How many grams KCl saturates 875 mL water at 10°C? How many grams sodium nitrate dissolve into 1420 mL water at 50°C? How many grams ammonium chloride dissolve into 25 mL water at 70 °C?

22. How many grams KCl saturates 875 mL water at 10°C? 10 °C KCl water 30 g 100 mL X g 875 mL 100 X = 26250 X = 262.5 = 263 g 3 SF

23. How many grams sodium nitrate dissolve into 1420 mL water at 50°C? 50 °C NaNO 3 water 115 g 100 mL X g 1420 mL 100 X = 163,300 X = 1633 = 1630 g 3 SF

24. How many grams ammonium chloride dissolve into 25.0 mL water at 70 °C? 15.5 = 16 grams with 2 SF 70 °C NH 4 Cl water 62 g 100 mL X g 25.0 mL 100 X = 1550 X = 15.5 g ammonium chloride