Chemistry, asked by divya6455, 1 month ago

The emperical formula of boron hydride is BH3 .calculate molecular formula when the Measured mass of compound is 27.66(atomic Mass B =10.81 , H=1)

Answers

Answered by anuradhadamera22
1

Answer:

The emperical formula of boron hydride is BH3 .calculate molecular formula when the Measured mass of compound is 27.66(atomic Mass B =10.81 , H=1)

Answered by raviranjan991168
1

Solution:

the atomic mass is given by=B+3(H)=10.81+3(1)=13.81u

but the measured molecular mass for Boron atom is given as 27.66u

by using the expression Molecular formula=n×empricial formula

n=molecular formula/Empirical formula=27.66/13.81=2

cutting value of n = 2 in the Empirical formula we get molecular formula as

Molecular formula=2(BH3)=B2H6.

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