2. Section POST-LAB QUESTIONS continued Assume that, in the experiment described in Question 2. 125 mL of 25°C distilled

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2 Section Post Lab Questions Continued Assume That In The Experiment Described In Question 2 125 Ml Of 25 C Distilled 1 (49.28 KiB) Viewed 87 times

2. Section POST-LAB QUESTIONS continued Assume that, in the experiment described in Question 2. 125 mL of 25°C distilled water was used to wash and transfer the precipitate, rather than 20. mL of chilled distilled water (at 4°C). The following questions will guide you through calculations of how warm or cold water might affect the amount of product collected. a. The solubility of barium lodate monohydrate in 25°C water is 0.028 g per 100 ml of water. Calculate the solubility, or in other words, the proportion of how much product would dissolve if you rinsed it with 125 mL of 25°C distilled water. b. Suppose you have 4.832 g of product and then rinse it with 125 mL of 25°C water, use the answer in 2a to calculate how much product would you expect to isolate. c. The solubility of barium iodate monohydrate in 4°C water is 0.010 g per 100 mL of water. Calculate the solubility, or in other words, how much product would dissolve if you rinsed it with 20.0 mL of 4°C distilled water. d. Suppose you have 4.832 g of product and then rinse it with 20.0 mL of 4°C water, use the answer in 2c to calculate how much product would you expect to isolate. JHCC Using your answers from (b) and (d), calculate the percent error or percent difference as a result of accidentally using the 25°C water, water that is too warm, compared with the correct (accepted) yield isolated using 20. mL of 4°C water.