# Sample problems benzene

1. Question: How many moles are there in 78 grams of benzene? Answer: There is 1 mole of benzene in 78 grams.

2. Question: How many grams are there in 0.5 moles of benzene? Answer: There are 39 grams in 0.5 moles of benzene.
3. Question: How many moles of hydrogen are there in 1 mole of benzene? Answer: There are 6 moles of hydrogen in 1 mole of benzene.
4. Question: How many moles of carbon are present in 2 moles of benzene? Answer: There are 12 moles of carbon in 2 moles of benzene.
5. Question: How many grams of carbon are present in 100 grams of benzene? Answer: There are approximately 92.26 grams of carbon in 100 grams of benzene.
6. Question: What is the molar mass of the benzene molecule? Answer: The molar mass of benzene is 78 g/mol.
7. Question: How many moles of hydrogen are there in 156 grams of benzene? Answer: There are 12 moles of hydrogen in 156 grams of benzene.
8. Question: How many moles of benzene are present in 234 grams of benzene? Answer: There are 3 moles of benzene in 234 grams of benzene.
9. Question: How many moles of nitrobenzene (C₆H₅NO₂) can be produced from 3 moles of benzene? Answer: 3 moles of nitrobenzene can be produced from 3 moles of benzene.
10. Question: How many grams of benzene are there in 2.5 moles of benzene? Answer: There are 195 grams of benzene in 2.5 moles of benzene.
11. Question: What is the mass of carbon in 100 grams of benzene? Answer: The mass of carbon in 100 grams of benzene is approximately 92.26 grams.
12. Question: How many liters of benzene (at STP) are there in 0.5 moles of benzene? Answer: There are 11.2 liters of benzene in 0.5 moles of benzene at STP.
13. Question: How many molecules are there in 2 moles of benzene? Answer: There are 1.2 x 10²⁴ molecules in 2 moles of benzene.
14. Question: How many moles of phenol (C₆H₅OH) can be produced from 2 moles of benzene? Answer: 2 moles of phenol can be produced from 2 moles of benzene.
15. Question: What is the weight of one molecule of benzene? Answer: The weight of one molecule of benzene is approximately 1.29 x 10⁻²² grams.
16. Question: What is the percentage composition of carbon in benzene? Answer: The percentage composition of carbon in benzene is about 92.26%.
17. Question: How many moles of toluene (C₇H₈) can be produced from 4 moles of benzene? Answer: 4 moles of toluene can be produced from 4 moles of benzene.
18. Question: How many grams of hydrogen are there in 78 grams of benzene? Answer: There are approximately 5.74 grams of hydrogen in 78 grams of benzene.
19. Question: How many grams of nitrobenzene (C₆H₅NO₂) can be produced from 78 grams of benzene? Answer: 123 grams of nitrobenzene can be produced from 78 grams of benzene.
20. Question: How many moles of aniline (C₆H₅NH₂) can be produced from 5 moles of benzene? Answer: 5 moles of aniline can be produced from 5 moles of benzene.