Question

the total no of proton in 10 g of calcium carbonate is

Answer 1

12 proton is calcium carbonate

Answer 2

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total number of protons in 10g of calcium carbonate is

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asked Apr 26, 2016 by avigandhi65



1 Answer

The molecular mass of CaCO3=100gmol−1CaCO3=100gmol−1

No. of moles, n=mM=10g100gmol−1n=mM=10g100gmol−1=0.1mol

That means there are 0.1⋅6.022⋅1023=0.6022⋅1023=6⋅10220.1⋅6.022⋅1023=0.6022⋅1023=6⋅1022molecules in 10g.

No. of

Ca atoms in a molecule=1

C atoms in a molecule=1

O atoms in a molecule=3

Total atoms in a molecule=5

Now it's to do with protons. In a molecule of CaCO3CaCO3, there are protons

Protons of a Ca atom=20

Protons of a C atom=6

Protons of a O atom=8

Total no. of protons in a molecule=20×1+6×1+8×3=5020×1+6×1+8×3=50

So, the total no. of protons in 10g:

no. of protons = 50×6×1022=3×102×1022=3×10ratio 24