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The molecular mass of C u S O 4 ​ . 5 H 2 ​ O is: (ATOMIC MASS OF C U = 63.5, H = 1, O = 16, S = 32) A 233.5 gm/mole B 249.5 gm/mole C 251.5 gm/mole D 247.5 gm/mole

The molecular mass of CuSO4​.5H2​O is:

(ATOMIC MASS OF CU = 63.5, H = 1, O = 16, S = 32)
A

233.5 gm/mole

B

249.5 gm/mole

C

251.5 gm/mole

D

247.5 gm/mole

 

Grade:8

1 Answers

Omveer Singh
askIITians Faculty 52 Points
3 years ago

Molecular mass of a compound is the sum of atomic masses of each element present in the molecule. 

Molecular mass = atomic mass of Cu + atomic mass of S + (9 × atomic mass of O) + (10 × atomic mass of H) =63.5+32+9×16+10×1=249.5 gm/mole

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