【Daily Question】9.25 Reply +2； For +3~8
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This post was last edited by zjp on 2015-9-27 07:46. In order to increase the popularity of the chemical analysis section, the previous 【Weekly Topic】 activity has been replaced with a 【Daily Question】 activity; this helps to foster an active atmosphere for technical exchanges while also providing members with certain financial rewards. 【Daily Question】 (Single-choice question) What is the relationship between the unit of density, kg/m3, and mg/L? A. 1:1 B. 1:1000 C. 1:10 D. 1000:1. kg/m3 = 1000*1000 mg/1000 L = 1000 mg/L; therefore, the answer is D. Reply with your answer in the comments to participate in the quiz – you will receive +2 wealth points. Those who get all answers correct will receive an additional +3 to +8 wealth points. Those who provide a thorough analysis and explanation of the questions or answers (or include detailed calculation processes) will receive extra wealth points as a reward. If your answer is correct and your analysis is accurate, it will be marked as the best reply (or the best assistance). Feel free to answer the questions. Note: We will close this post after 24 hours, and at that time we will announce the best reply (the best assistance), as well as the answer and explanation.
The relationship between the density unit kg/m3 and mg/L is (A).
The relationship between the density unit kg/m3 and mg/L is (D). A. 1:1 B.1:1000 C. 1:10 D.1000:1
Option D, 1000:1. kg/m3 and g/cm3 are in a ratio of 1000:1; g/cm3 = mg/L
My answer: D. . . . . . . . . . . . . . . . .
The relationship between the density unit kg/m3 and mg/L is (B. 1:1000).
D.1000:1 ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! !
1kg = 1000g = 1000*1000mg. 1m3 = 1000L = 1000*1000ml. So there is a 1-to-1 relationship. The answer is: A
The relationship between the density unit kg/m3 and mg/L is (D). 1000X1000/1000
The relationship between the density unit kg/m3 and mg/L is (A). A. 1:1 B.1:1000 C. 1:10 D.1000:1