# 1)

14 moles of Ar

12 moles of N2

2 moles of BF3

If the total number of mol present in the mixture visualized is 1.43, calculate the number of mol of N2.

2)

11 moles of N2

4 moles of CSH4

If the total number of mol present in the mixture visualized is 1.68, calculate the number of mol of N2