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16-01-2015
Chemistry

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How many formula units of CaSO4 are in 17g of CaSO4?

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17-01-2015

CaSO4 has a molar mass of 136.145 (40.08+32.065+16*4).
17 g / 136.145g= ~0.125 formula units (0.12 with appropriate significant figures)

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