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ChemistryWAEC SSCE2007

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Earlier discussion

2 older comments kept for context.

Byinka

What does d x stands for

Oluwaseun Adeyemi

250cm3 of distilled water contains 14.8g of salt(z)

1cm3 of distilled water will contain \(\frac{14.8 x 1}{250}\) of salt (z)

:. 1000cm3 of distilled water will contain \(\frac{14.8 x 1 x 1000}{250}\) = 59.2g/dm33 = \(\frac{concentration in g/dm3}{molar mass}

0.80 = \(\frac{59.2}{molar mass}\)

molar mass = \(\frac{59.2}{0.80}\) = 74.0 g/mol