N5 + (g) + N5 - (g)--> 2N3(g) + N2 (g)
in a theoretical reaction, a sample N5+N5- is allowed to completely decomposed and the resultant N2 is collected. At STP the volume of the gas is measured to be 112 L. What was the mass of the original sample?
1. 70g
2. 140g
3. 280g
4. 350g
ans: 2
I know the N2 is 5 moles, but what to do after that?
in a theoretical reaction, a sample N5+N5- is allowed to completely decomposed and the resultant N2 is collected. At STP the volume of the gas is measured to be 112 L. What was the mass of the original sample?
1. 70g
2. 140g
3. 280g
4. 350g
ans: 2
I know the N2 is 5 moles, but what to do after that?