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To find : No of protons in 10gm of calcium carbonate
Dear Ashok 3*10^24 protons as 100 gm CaCO3 =6.022*10^23 molecules of CaCO3, so 1 gm CaCO3 = 6.022*10^21 molecules, also 1 molecule of CaCO3 contains 50 protons i.e,20+6+24 so no. of protons in 10 gm of CaCO3 is =6.022*10^21*10*50 =3.011*10^24 protons. RegardsArun
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