Which of the following statements is FALSE. Select one: A. Two of the statements are false. B. In the synthesis of aspirin, the main impurities are salicylic acid and acetic acid. C. Aspirin was purified in the lab by recrystallizing the crude aspirin. The melting point of the purified aspirin is expected to be lower than the melting point of crude aspirin. D. In the analysis of aspirin, the greater the amount of salicylic acid impurity in the aspirin, the smaller the amount of NaOH needed for the hydrolysis of aspirin. E. If the crude aspirin is not entirely pure, the temperature range at which it melts will be larger than pure aspirin.

Question

01-06-2021
Chemistry

Answered

Discover answers to your questions with Westonci.ca, the leading Q&A platform that connects you with knowledgeable experts. Connect with a community of experts ready to provide precise solutions to your questions on our user-friendly Q&A platform. Get quick and reliable solutions to your questions from a community of experienced experts on our platform.

Which of the following statements is FALSE. Select one: A. Two of the statements are false. B. In the synthesis of aspirin, the main impurities are salicylic acid and acetic acid. C. Aspirin was purified in the lab by recrystallizing the crude aspirin. The melting point of the purified aspirin is expected to be lower than the melting point of crude aspirin. D. In the analysis of aspirin, the greater the amount of salicylic acid impurity in the aspirin, the smaller the amount of NaOH needed for the hydrolysis of aspirin. E. If the crude aspirin is not entirely pure, the temperature range at which it melts will be larger than pure aspirin.

Sagot :

We appreciate your time. Please revisit us for more reliable answers to any questions you may have. We appreciate your time. Please come back anytime for the latest information and answers to your questions. Thank you for trusting Westonci.ca. Don't forget to revisit us for more accurate and insightful answers.

The Canadian Shield, a vast expanse of ancient rock, is centered around which area?

a point is reflected across the y- axis. The new point is (-4.25, 1.75). Write the ordered pair that represent the original point:

what cloud that forms at ground level is called

tony worked 4 2/3 hours on his science project. sonia worked 1 1/4 times as long on her science project as tony did. for how many hours did sonia work on her sc

Which personal pronoun correctly completes the sentence? What is its use? The beauty of our national parks awed my family and __________. A. I; direct object B.

What is the main difference between federal and confederal systems of government?

An increase in investment __________. lowers interest rates increases current consumption expands the productive capacity of the economy leads to inflation

A star-nosed mole’s habitat is the same as its niche. True or False?

10. Using your knowledge of prefixes, suffixes, and word roots, answer the question. The bear was dormant, but Karen knew he might awake at any time. What does

What is the relationship between market failure and free rider ?

pstnonsonjoku pstnonsonjoku · Answer 1 · 2021-06-04T22:18:41-04:00

Answer:

Aspirin was purified in the lab by recrystallizing the crude aspirin. The melting point of the purified aspirin is expected to be lower than the melting point of crude aspirin.

Explanation:

The presence of impurities in a sample lowers the melting point of the impure substance. Hence the melting point of an impure substance is always less than the melting point of the corresponding pure substance.

Bearing this in mind, the statement "Aspirin was purified in the lab by recrystallizing the crude aspirin. The melting point of the purified aspirin is expected to be lower than the melting point of crude aspirin." is found to be false since impure substances tend to have a slightly lower melting point than the pure substance, and a broader melting temperature range.

Sagot :

Other Questions