1.

Determine the molecular mass of: (i) ZnSO 7H,(ii) K,CO,Atomic masses : H = 1.00, 0 = 16, C = 12, K = 39, Zn = 65, S = 32Solution:​

Answer»

1583724Give - Atomic Mass of ZN= 650 =Atomic Mass Na = 23u ofAtomic Mass of k= 39u Atomic Mass of C =12u ==Atomic Mass ofo = 160 =Formula Mass of ZNO = Atomic mass of Zn + Atomic MALL ofニ 6S0+ \6u= 810Formula Mass of NazO = 2X Atomic mall of Na + Atomic mass of= 2 x 230+ 16u- 460+ 160こ620Formula Mass of X COs = 2x Atomic mass of K+ Atomic Mass of C+3x Atomic Mass of o= 2x39 u + 12u+ 3x160= 780 + 120 + 480= 138 u



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