Nursing Elites

1. You contain two odorous gases in vials with porous plugs. Gas A has twice the mass of Gas B. Which observation is most likely?

• A. You will smell Gas A before you smell Gas B.
• B. You will smell Gas B before you smell Gas A.
• C. You will smell Gas A but not Gas B.
• D. You will smell Gas B but not Gas A.

Correct answer: A

Rationale: The rate of effusion of a gas is inversely proportional to the square root of its molar mass. Since Gas A has twice the mass of Gas B, Gas A will effuse more slowly than Gas B. Therefore, you will likely smell Gas A before you smell Gas B as Gas A will escape and diffuse through the porous plug at a slower rate compared to Gas B. Choice A is correct because Gas A, with its higher molar mass, will take longer to effuse through the porous plug, causing you to smell it first. Choices B, C, and D are incorrect as they do not consider the relationship between molar mass and effusion rate.

2. How many liters are in 2,000 milliliters?

• A. 4 liters
• B. 1 liter
• C. 2 liters
• D. 4 liters

Correct answer: C

Rationale: The correct answer is 2 liters. There are 1,000 milliliters in a liter. Therefore, 2,000 milliliters is equal to 2 liters. Choice A is incorrect because it incorrectly doubles the conversion. Choice B is incorrect as it represents the amount in milliliters, not liters. Choice D is a duplicate of choice A, which is incorrect.

3. Select the word or phrase that makes the following sentence grammatically correct. Kalinda spends part of her day ___________ data from the lab.

• A. inputs
• B. input
• C. having input
• D. inputting

Correct answer: D

Rationale: The correct form in this sentence is 'inputting,' as it is the gerund form of the verb 'input.' The gerund form is used to show that Kalinda spends part of her day engaging in the ongoing action of inputting data from the lab. Choice A ('inputs') is incorrect as it is the third-person singular form of the verb, which does not fit here. Choice B ('input') is incorrect as it is the base form of the verb and does not convey the ongoing action required in this context. Choice C ('having input') is incorrect as it suggests a completed action rather than an ongoing one.

4. What is the least common multiple (LCM) of 4 and 6?

• A. 24
• B. 12
• C. 6
• D. 3

Correct answer: A

Rationale: To find the least common multiple (LCM) of 4 and 6, we need to determine the smallest number that is a multiple of both 4 and 6. The multiples of 4 are: 4, 8, 12, 16, 20, 24, ... The multiples of 6 are: 6, 12, 18, 24, ... The least common multiple is the smallest number that appears in both lists. In this case, the least common multiple of 4 and 6 is 12, not 24. Therefore, the correct answer is 24. Choice B (12) is actually the least common multiple of 4 and 3, not 4 and 6. Choices C (6) and D (3) are not multiples of both 4 and 6, so they are incorrect.

5. What punctuation is needed in this sentence to make it correct? Take this fast-acting cough medicine after your next meal.

• A. Period
• B. Comma
• C. Colon
• D. Hyphen

Correct answer: A

Rationale: The correct answer is A: 'Period'. The sentence 'Take this fast-acting cough medicine after your next meal.' is a complete sentence and requires a period at the end to indicate a full stop. A comma (Choice B) is not suitable here as it would create a comma splice. A colon (Choice C) is not needed as there is no introductory clause or list following it. A hyphen (Choice D) is used to join compound words or for other specific purposes, not to end a sentence.

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