Q.

The weight of 1×1022 molecules of CuSO45H2O is:

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a

0.4159 g

b

41.59 g

c

415.9 g

d

 4.159 g

answer is C.

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Detailed Solution

The weight of 1×1022 molecules of CuSO45H2O is:

1022NA×249.5

102260×249.5= 4.159 g.

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