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12 Nov 2019
A sample of calcium hydroxide, Ca(OH),, was weighed and found to have a mass of 0.5000 g. In an effort to discover the formula of calcium oxide, this sample was converted to calcium oxide by heating. The sample of calcium hydroxide obtained had a mass of 0.3772 g. Follow the steps below to determine the formula of calcium oxide. 1. Find the number of moles of calcium hydroxide in the initial sample. 2. How many moles of calcium ions were in this initial sample? How many millimoles? 3. How many grams of calcium ions were in the initial sample? 4. How many mmoles of calcium ions were in the final sample? 5. How many grams of calcium ions were in the final sample?
A sample of calcium hydroxide, Ca(OH),, was weighed and found to have a mass of 0.5000 g. In an effort to discover the formula of calcium oxide, this sample was converted to calcium oxide by heating. The sample of calcium hydroxide obtained had a mass of 0.3772 g. Follow the steps below to determine the formula of calcium oxide. 1. Find the number of moles of calcium hydroxide in the initial sample. 2. How many moles of calcium ions were in this initial sample? How many millimoles? 3. How many grams of calcium ions were in the initial sample? 4. How many mmoles of calcium ions were in the final sample? 5. How many grams of calcium ions were in the final sample?
Nelly StrackeLv2
10 Jul 2019