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The total mass of CaSO4 is 136.139 g/mol.
- The mass of Ca is 40.078, so % comp is 40.078/136.139 x 100 = 29.4%
- The mass of S is 32.065 so % comp is 23.56%, using the method above
- The mass of O is 15.999, but because there are four O atoms in the compound, the % comp will be (15.999 x 4) / 136.139 x 100 = 47.0%
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CaBr2 :)
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CaBr2 :)
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Being friends
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