Calculate the molar mass of the given substances:-
a) CaCl2 and b) H2SO4 (given that: H=1, O = 16, S=32, Ca = 40 and Cl =35.5)
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1) N H 3
atomic mass of N + 3 ( atomic mass of hydrogen )
= 14 +3
= 17u
2) H 2 S O 4
= 1 × 2 + 32 + 16 × 4
= 2 + 32+ 64
= 98u
3) C A C L 2
Atomic mass of C A = 40
Atomic mass of C L = 35.5(2)
Formula unit mass of C A C L 2 = 111 u
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