Question

Calculate the number of molecules present in 2.2g of carbon dioxide.

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Answer 1

Answer:

The molar mass of CO2 is 44 g/mol. So, there are 6.022 * 10^23 molecules of CO2 in 44.

Hence, in 1 gram, there will be the same number of molecules of CO2 divided by 44.

Now, in 2.2g of CO2, there will be 6.022 * 10^23 * 2.2 / 44 molecules of CO2, which equals 0.3011 * 10^23 molecules.

Step-by-step explanation:

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Answer 2

Answer:

3.011×10^23

Step-by-step explanation:

formula =no. of molecules =given mass /molar mass × avocado no.

avocado no. = 6.022×10^23

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