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Chemistry
Dreamer
5 March, 01:16
How many molecules are in 0.0124 mol of CH2O
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Dennis Boone
5 March, 02:53
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The molecules in 0.0124 mol of CH2O: = 0.0746 x 10²³ molecules
Explanation:
Number of molecules can be calculated as ratio of given mass to molecular mass x Avogadro's number.
That is;
Number of molecules = Given mass / molecular mass x Avogadro's number.
Number of molecules = given mass / molecular mass x 6.023 x 10²³
In the above asked question:
The moles of CH₂O = 0.0124 moles
The molecular mass = CH₂O
(atomic mass of C + + atomic mass of hydrogen + atomic mass of O
that is:
12 + 1x 2+16=30
Now, substituting in formula, we get
number of molecules = 0.0124mole x Av. number '
Number of molecules = 0.0124 x 6.022 x 10²³
= 0.0746 x 10²³ molecules
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