Calculate the molar mass of the following
a )cuso4
b) Na₂CO3 .2H2O
(Na-23
Cu = 63.5 5=32 0 =16 c= 12 H=1)
Answers
Answered by
1
Answer:
a) 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
Answered by
0
Answer:
a)159.5
b)142
Explanation:
a) Molar mass ofCuSO4
= 1×Cu + 1×S +4×O
= 1× 63.5+ 1×32+4×16
= 159.5
b) Molar mass of Na2co3. 2H20
= 2×Na + 1×C + 3×O +( 4×H+2×O)
= 2×23+1×12+3×16+4×1+2×16
= 46+12+48+4+32
= 142
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