Chemistry, asked by chomalhimanshu15, 5 months ago

how many atoms of calcium and oxygen are present in 25 gram of calcium carbonate

Answers

Answered by skpillai636

1

Answer:

Explanation:

M.wt of CaCO3=100

number of moles of CaCO_3 present in 50gm =50/100=0.5

1 mole of CaCO3 = 3 moles of O2

0.5 moles of CaCO3 has 1.5 moles of oxygen.

1mole=6.022∗1023particles

∴ 50g of CaCO3=1.5∗(6.022∗1023)=9.035∗1023 oxygen atoms.

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