find the average molar mass of a gaseous mixture in g/mole , which contain 1.2046×10^23 atoms of an unknown gas and 0.2 mole of h2 gas. the weight of mixture is 22g.
Answers
Answered by
10
Hey Dear,
● Answer -
Average molar mass = 55 g/mol
◆ Explanation -
Mass of hydrogen is given by -
W1 = n1 × M1
W1 = 0.2 × 2
W1 = 0.4 g
Weight of other gas is calculated by -
W2 = W - W1
W2 = 22 - 0.4
W2 = 21.6 g
No of moles of other gas is calculated by -
n2 = N / NA
n2 = 1.2046×10^23 / 6.022×10^23
n2 = 0.2 mol
Molar mass of other gas is calculated by -
M2 = W2 / n2
M2 = 21.6 / 0.2
M2 = 108 g/mol
Average molar mass of gaseous mixture is calculated by -
M = (W1 + W2) / (n1 + n2)
M = 22 / (0.2 + 0.2)
M = 55 g/mol
Therefore, average molar mass of gaseous mixture is 55 g/mol.
Hope this helped you. Keep asking..
Similar questions