Question

the percentage by weight of 02 in cao4 ( ca=40, o=16, s=32) ​

Answer 1

Answer:

Divide the mass of the element by the total mass of the compound and multiply by 100. This will give you the mass percent of the element. Example 1: mass percent = (2.01588/18.01528) x 100 = 0.11189 x 100 = 11.18%. Thus, the mass percent of Hydrogen atoms in a water molecule is 11.18%

Answer 2

Explanation:

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