Moles,Density and Concentration MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Moles,Density and Concentration, a fundamental topic in the field of Basic Chemical Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Moles,Density and Concentration MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Moles,Density and Concentration mcq questions that explore various aspects of Moles,Density and Concentration problems. Each MCQ is crafted to challenge your understanding of Moles,Density and Concentration principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Basic Chemical Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Moles,Density and Concentration MCQs are your pathway to success in mastering this essential Basic Chemical Engineering topic.

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Moles,Density and Concentration MCQs | Page 6 of 10

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Q51.
What is the mole fraction of sodium with moles n in a solution with moles of solvent N?
Discuss
Answer: (c).n/(n + N)
Q52.
What is the unit of mole fraction?
Discuss
Answer: (d).None of the mentioned
Q53.
If the mole fraction of 4.5 moles of solute is 0.5, what is the number of moles of solvent?
Discuss
Answer: (b).4.5
Q54.
What is the mass fraction of 4 moles of Sodium in 8 moles of Hydrogen chloride?
Discuss
Answer: (a).0.24
Q55.
If the mole fraction of sodium is 0.25 in 9 moles of liquid carbon dioxide, what is the mass fraction of sodium?
Discuss
Answer: (b).0.15
Q56.
A solution has 25% w/w solution of Sodium Chloride in 10 grams of water what is the mole fraction of Sodium Chloride?
Discuss
Answer: (c).0.07
Q57.
If the mole fraction of SOโ‚‚ in Hโ‚‚SOโ‚„ is 0.2, what is the ratio of mass of sulfur and oxygen in the solution?
Discuss
Answer: (d).0.555
Q58.
A mixture of gases SOโ‚‚, Oโ‚‚ and 4 g of Nโ‚‚ and total mass of mixture is 10 g, what is the sum of mole fraction of SOโ‚‚ and Oโ‚‚?
Discuss
Answer: (c).0.75
Q59.
A neutral gas that is made of nitrogen and hydrogen only contains 7 g of nitrogen is in a mixture of with total mass 17 g, what is the mass fraction of the gas?
Discuss
Answer: (a).0.5
Q60.
A mixture contains 23 g of ethanol and 36 g of water, some acetic acid is added to the mixture and its mole fraction becomes 0.5, how much acetic acid was added?
Discuss
Answer: (d).150 g