DATA: Mass of the clean, dry, cool evaporating dish (tare weight): 43.122 grams Mass of the copper chloride hydrate Cu,C

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Data Mass Of The Clean Dry Cool Evaporating Dish Tare Weight 43 122 Grams Mass Of The Copper Chloride Hydrate Cu C 1 (56.2 KiB) Viewed 31 times

DATA: Mass of the clean, dry, cool evaporating dish (tare weight): 43.122 grams Mass of the copper chloride hydrate Cu,Ci, zH₂O: 0.893 grams Mass of the evaporating dish and sample after the first heating and desiccating/cooling: 43.823 grams Mass of the evaporating dish and sample after the second heating and desiccating/cooling: 43.822 grams (constant mass achieved; the sample is now anhydrous) Mass of the anhydrous copper chloride: grams SUPPLIED INFORMATION: Actual mass percent water in the copper chloride hydrate: 21.1% water CALCULATIONS: 1. CALCULATE THE NUMBER OF GRAMS OF WATER IN YOUR SAMPLE: Mass of the hydrate sample (g)-mass of the anhydrous sample (g) mass of water (g) 2. CALCULATE THE MASS PERCENT WATER IN YOUR SAMPLE: Mass of water (g)/ mass of the hydrate sample (g) x 100 hope for an answer close to 21.1% water 3. CALCULATE THE PERCENT ERROR IN YOUR ANSWER (TO EVALUATE ACCURACY) (Your experimentally determined % water from Step 2-21.1% water) 100-hope for a small % (21.1% water)