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How many moles of water are present in 977. 2g of Bacl2.2H2O? Molecular weight of bacl2. 2 H2O is equal to 224.33

How many moles of water are present in 977. 2g of Bacl2.2H2O?
Molecular weight of bacl2. 2 H2O is equal to 224.33

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1 Answers

Arun
25750 Points
5 years ago

The molar mass (that is the mass of one mole) of BaCl2.2H2O is 244g. Each mole of this compound contains 2 moles of water. Thus

244 g of BaCl2.2H2O → 2 moles of water

1g of BaCl2.2H2O → (2 / 244) moles of water

977.2 g of BaCl2.2H2O → (2 X 977) / 244 moles of water

= 8 moles of water

So, 488g of BaCl2 contains 8 moles of water.

 

 

Molecular weight of Bacl2.2H20 = 244

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