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The weight of NaCl decomposed by 4.9g" o...

The weight of NaCl decomposed by `4.9g" of "H_(2)SO_(4)`, if 6g of sodium hydrogen sulphate and `1.825 g` of HCI, were produced in the reaction is:

A

`6.921 g`

B

`4.65g`

C

`2.925 g`

D

`1.4 g`

Text Solution

Verified by Experts

The correct Answer is:
C
`underset(xg) ( NaCl) + underset(4.9g) ( H _(2) SO_(4)) to underset(6g) ( Na HSO _(4))+ underset(1.825 g) (HCl)`
According to law of conservatin of mass "mass is neither created nor destoryed during a chemical change .
`therefore ` Mass of the reactants = Mass of products `: x + 4. 9 = 6 + 1. 825 or x = 2. 925 g`
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