Question

E/m ratio of a particle of charge 2 unit and mass 4 amu is
(A) 4.8× 10^7 C/kg
(B) 0.5 C/kg
(C) 4.8 x 10^4 C/kg
(D) 8 ×10^-20 C/kg​

Answer 1

How many hydrogen bonded molecules are present in cuso4.5h2o?

In CuSO4.5H2O, four water molecules are coordinated to Cu+2, while one is hydrogen bonded with SO42-.

Answer 2

Explanation:

2×1.6×10^_19/4×1.66×10^_27