Chemical Process Calculation Questions and Answers – Mole and Molecular Weight – VII

This set of Chemical Process Calculation Inteview Questions and Answers for freshers focuses on “Mole and Molecular Weight-VII”.

1-10. A bucket contains 56 gms of C2H4, 36 gms of H2O and 44 gms of C3H8. (Molecular weights of the components are 28, 18 and 44 gms respectively)
1. How many moles of C2H4 are there in the bucket?
a) 1
b) 2
c) 4
d) 6
View Answer

Answer: b
Explanation: Number of moles = mass / molecular weight.

2. How many moles of H2O are there in the bucket?
a) 1
b) 2
c) 4
d) 6
View Answer

Answer: b
Explanation: Number of moles = mass / molecular weight.

3. How many moles of C3H8 are there in the bucket?
a) 1
b) 2
c) 4
d) 6
View Answer

Answer: a
Explanation: Number of moles = mass / molecular weight.
advertisement
advertisement

4. What are the number moles of Oxgen present there in the bucket?
a) 1
b) 2
c) 4
d) 6
View Answer

Answer: a
Explanation: Number of moles of Oxygen = 1/2(Number of moles of H2O) .

5. How many moles of H2 are there in the bucket?
a) 3
b) 6
c) 10
d) 12
View Answer

Answer: c
Explanation: Moles of H2 = Moles of H2 in (2 Moles of C2H4+ 2 Moles of H2O + 1 Mole of C3H8).
Note: Join free Sanfoundry classes at Telegram or Youtube

6. What is mole percentage of C2H4?
a) 0.2
b) 0.4
c) 0.6
d) 0.8
View Answer

Answer: b
Explanation: Mole percentage = Moles of the component / Total moles.

7. What is mole percentage of H2O?
a) 0.2
b) 0.4
c) 0.6
d) 0.8
View Answer

Answer: b
Explanation: Mole percentage = Moles of the component / Total moles.
advertisement

8. What is mole percentage of C3H8?
a) 0.2
b) 0.4
c) 0.6
d) 0.8
View Answer

Answer: a
Explanation: Mole percentage = Moles of the component / Total moles.

9. What is the weight percentage of C2H4?
a) 41.17
b) 51.17
c) 61.17
d) 71.17
View Answer

Answer: a
Explanation: Weight percentage = Weight of the component / Total weight.
advertisement

10. What is the weight percentage of H2O?
a) 26.47
b) 36.47
c) 47.47
d) 58.47
View Answer

Answer: a
Explanation: Weight percentage = Weight of the component / Total weight.

Sanfoundry Global Education & Learning Series – Chemical Process Calculation.
To practice all areas of Chemical Process Calculation for Interviews, here is complete set of 1000+ Multiple Choice Questions and Answers.

If you find a mistake in question / option / answer, kindly take a screenshot and email to [email protected]

advertisement
advertisement
Subscribe to our Newsletters (Subject-wise). Participate in the Sanfoundry Certification contest to get free Certificate of Merit. Join our social networks below and stay updated with latest contests, videos, internships and jobs!

Youtube | Telegram | LinkedIn | Instagram | Facebook | Twitter | Pinterest
Manish Bhojasia - Founder & CTO at Sanfoundry
Manish Bhojasia, a technology veteran with 20+ years @ Cisco & Wipro, is Founder and CTO at Sanfoundry. He lives in Bangalore, and focuses on development of Linux Kernel, SAN Technologies, Advanced C, Data Structures & Alogrithms. Stay connected with him at LinkedIn.

Subscribe to his free Masterclasses at Youtube & discussions at Telegram SanfoundryClasses.