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26.8 gm N a 2 S O 4 . n H 2 O contains 12.6 of water here the value of 'n' is?

Correct answer

7

Step-by-step solution

N a 2 S O 4 . n H 2 O Molar mass of this salt = 142 + 18 n Mass of water = 12.6 26.8 × 142 + 18 n 18 n = 12.6 26.8 142 + 18 n On solving n = 7

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