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What weight of sodium chloride would be ...

What weight of sodium chloride would be decomposed by `4.9 g` of sulphric acid, if `6 g` of sodium bisulphate `(NaHSO_(4))` and `1.825 g` of hydrogen chloride were produced in the reaction and the law of conservation of mass is true?

Text Solution

Verified by Experts

The correct Answer is:
B
`NaCl + H_(2)SO_(4) rarr NaHSO_(4) + HCl`
According to the law of conservation of mass, the weight of reactants must be equal to the weight of the products. Thus,
`x + 4.9 = 6 + 1.825`
`x = 7.825 - 4.9 = 2.925 g = 2.9 g`
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