a gas mixture contains nitrogen and methane in 7:4 ratio by weight the ratio of their molecules is
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Answer:
A gas mixture contains nitrogen and methane in 7:4 ratio by weight the ratio of their molecules is 1:1
Explanation:
Concept-
We know , number of moles = given mass/ Molar mass.
Given- A gas mixture contains nitrogen and methane in 7:4 ratio by weight.
Let the given mass of nitrogen= 7x
Molar mass of nitrogen= 28 g/mol
Number of moles of Nitrogen - 7x/28
Let the given mass of methane = 4x
Molar mass of methane = 16g/mol
Number of moles of methane = 4x/16
Number of molecules in 1 mole= 6.022 × 10^23
So, the ratio of their number of molecules is the same as the ratio of number of moles , as it is directly proportional .
No. of moles of N2 = 7x/28. = 1/1
No. of moles of CH4. 4x/ 16
The ratio of their molecules is 1:1
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