Question

calculate the number of oxygen atoms in 50g CaCO3​

Answer 1

∴ 50g of CaCO3=1. 5∗(6. 022∗1023)=9. 035∗1023 oxygen atoms.

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Answer 2

Answer: 9.033 X 10²³ atoms of oxygen IS THE ANSWER.

Explanation:

100 g of CaCO₃ contains = 3 x 6.022 x 10²³ atoms of oxygen.

There fore,

50 g CaCO₃ will contain = 3 X 6.022 X 10²³ X 50/100

                                         = 9.033 X 10²³ atoms of oxygen.

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