What effect would the presence of copper(II) chloride dihydrate or aluminum chloride hexahydrate have on your calculated percent copper if they were present in your dry sample? Explain.

PRE-LAB QUESTIONS What does the expression,"digesting a precipitate" mean? 2. Describe how to test the filtrate for the presence of excess K 3. What mass of potassium ferrocyanide trihydrate was in the o 4. What was the mass of cobalt(I) chloride hexahydrate in the or l. Help Sheet? (Answer 1) Help Sheet? (Answer 2) 5. What are the percentages of the two components in the original 6. What mass of cobalt(II) chloride hexahydrate was used in the read mass of cobalt(ll) chloride hexahydrate was left over after the r some of the K CoFe(CN)H2O is lost in the filtering process, wou Help Sheet? (Answers 3 and 4) Sheet? Sheet? nigher or lower than the actual amount in the salt mixture? Explain.

PRE-LAB QUESTIONS I. What does the expression, "digesting a precipitate" mean? 2. Describe how to test the filtrate for the presence of excess K.Fe(CN)c3H,O 3. Wha e女 t mass of potassium ferrocyanide trihydrate was in the original mixture in the exa Help Sheet? (Answer l) 4. What was the mass of cobalt(ID) chloride hexahydrate in the original mixture in the ext 5. What are the percentages of the two components in the original salt mixture in the exa 6. What mass of cobalt(II) chloride hexahydrate was used in the reaction in the example 7. What mass of cobalt(II) chloride hexahydrate was left over after the reaction in the ex 8. If some of the K,CoFe(CN) HO is lost in the filtering process, would your reported Help Sheet? (Answer 2) Help Sheet? (Answers 3 and 4) Sheet? Help Sheet? higher or lower than the actual amount in the salt mixture? Explain.