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The common salt was obtained from two di...

The common salt was obtained from two different sources. In one sample, the percentage of chlorine was found to be 60.75 %. In the second sample, 3.888 g of chlorine were present in 6.4 g of the salt. Show that these data are in accordance to the law of constant proportion.

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The correct Answer is:
A
First case
Common salf from Clifton beach contains `= 67.75 % Cl_(2)`
`100 g` of salf `= 60.75 g of Cl_(2)`
`1 g` of salt `= (60.75)/(100) = 0.6075 g of Cl_(2)`
Second case
`6.40 g` of `NaCl` from Khewra mine `= 3.888 g of Cl_(2)`
`1 g` of NaCl from Khewra mine `= (3.888)/(6.40) g of Cl_(2)`
Thus, the weight of `Cl_(2)` in `1 g` of salt in both the cases is same. Hence, the law of constant compositon is verified.
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