The ratio of masses of oxygen and nitrogen in a particular gaseous mixture is 1:4. The ratio of number of their molecule is: x:y. Find the value of x+y
A
39
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B
39.0
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C
39.00
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Solution
Number of moles of O2=w32
Number of moles of N2=4w28=w7 ∴Ratio=w32:w7=7:32 x+y=32+7=39