helium is found to diffuse two times faster than x, what is the molecular mass of x?
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Expert's answer
2017-02-21T08:28:40-0500
Grahams law, says: v1/v2 = sqrt(M2/M1) where v1 and v2 are veloicityes; M1 and M2 are molecular weights So is difuse faster in two times v1/v2 = 2 M(He) = 4 g/mol 2 = sqrt(x/4) 4 = x/4 x = 16 (g/mol)
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