Chemistry, asked by ITZKHUSHI1234567, 11 months ago

CALCULATE MASS OF AN ATOM OF SILVER AND A MOLECULE OF CO².​

Answers

Answered by BAAZ7466
5

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To calculate the atomic mass the mass should be multiplied by its natural abundance.

Now one atom of silver (Ag)= is 107.8682 u (where u= 1.66times10-27kg )

Now divide it by Avogadro i.e.numbers of atoms or molecules present in a substance

Thus atomic weight of Avogadro is 6.02times10^(^^)23

Therefore atomic mass of silver is 107.87/6.02times10^(^^)23 =1.792times10^(^^)-229

Mass of 1 molecule of carbon- di-oxide (c@2) is = As stated earlier

No.Of moles = No.of molecules /Avogadro number

Mo.Of moles =1/6.022times10^( to )23 .

Molecular weight of CO2=(1times12+2times16)

As a Mass=No.of moles x molecular weight of CO2

As atomic mass of carbon and oxygen are 12816

Mass =1/6.022times10^( to )23times44

respectively 12+32=44

Mass =7.3065times10^23

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Answered by afnan1141
0

To calculate the atomic mass, the mass should be multiplied by its natural abundance.

Now one atom of silver (Ag) = is 107.8682 u, (where u = 1.66x10–27kg)

Now, divide it by Avogadro i.e. numbers of atoms or molecules present in a substance

Thus, atomic weight of Avogadro is 6.02 x 10^23

Therefore, atomic mass of silver is 107.87/6.02 x 10^23 = 1.792 x 10^-22g

Mass of 1 molecule of carbon- di -oxide (co2) is =

As stated earlier,

No. Of moles =No. of molecules /Avogadro number

No. Of moles = 1/6.022 x 10^23.

Mass=No. of moles x molecular weight of CO2

Molecular weight of CO2 = (1x12+2x16)

As atomic mass of carbon and oxygen are 12&16 respectively 12+32=44

Mass=1/6.022x10^23 x 44

Mass =7.3065 x10^23gm

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