Question

Calculate the mass percent of different element present in calcium bi cabonate​

Answer 1

Molar mass of Na

2

SO

4

= 23×2+32+4×16=142

Na=

142

23×2

×100=32.4%

S=

142

32

×100=22.5%

O=

142

64

×100=45%

Answer 2

Answer:

100.0869

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