46. If the mass ratio of He to N, in a container is2:1 then the ratio of their moles will be(1) 2:18 (2) 4:1(3) 7:1ST 14:1
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Answered by
34
Answer:
Molar Mass of Helium = 4 g
Molar Mass of Nitrogen = 14 g
Ratio of given masses of Helium to Nitrogen = 2 : 1
Let the given masses be 2x and x respectively. This implies,
⇒ No of moles of Helium = 2x / 4 = x / 2
⇒ No of moles of Nitrogen = x / 14
Ratio of No of moles of Helium to that of Nitrogen is given as:
⇒ ( x/2 ) : ( x/14 )
⇒ 14 : 2 = 7 : 1
Therefore Option (3) is correct.
Answered by
33
Answer:
7:1
Explanation:
molecular mass of He is 4 and mass of N is 14
so, moles= given weight/ molecular mass
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