A 400g sample of solid CoSO47H2O was heated such that the wa

A 4.00-g sample of solid CoSO4·7H2O was heated such that the water turned to steam and was driven off. Assuming ideal behavior, what volume would that steam occupy at 1.00 atm and 100.0 °C?

CoSO4.7H2O = 281.09 g/mol

281.09 g CoSO4.7H2O contain 7 x 18 g H2O

4.00 g CoSO4.7H2O contain 4.00 x 7 x 18 / 281.09 = 1.79 g

so upon heating 1.79 g water goes as vapour

PV = nRT

n = 1.79 / 18 = 0.0994

V = nRT /P

V = 0.0994 x 0.0821 x 373 / 1.00

V = 3.04 L

answer = 3.04 L

A 4.00-g sample of solid CoSO4·7H2O was heated such that the water turned to steam and was driven off. Assuming ideal behavior, what volume would that steam occ

A 400g sample of solid CoSO47H2O was heated such that the wa

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