【Daily Question】November 20, 2015: Participation = +2 Wealth； +3 to 8 wealth for correct answers
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This post was last edited by zjp on 2015-11-22 08:06. To increase the popularity of the chemical analysis section, a \"One Question per Day\" campaign has been launched; this aims to foster active technical exchanges while also providing financial rewards to users. 【Daily Question】 (Single-choice question) The titration degree Ts/x is a concentration expressed as the amount equivalent to ( ) per mL of standard solution. A: Volume of the substance being tested; B: Weight of the substance being tested; C: Weight of the standard solution; D: Weight of the solute. Correct answer: B. Post your answer in the replies to participate; you will receive +2 wealth points for that. If you answer all questions correctly, you’ll get an additional +3 to +8 wealth points. Those who provide thorough analyses and explanations for the questions or answers, or who include detailed calculation processes, will receive extra wealth points as a reward. If your answer is correct and your analysis/explanation 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 titrability Ts/x is the concentration expressed in terms of (B) equivalent to per mL of standard solution. A: Volume of the substance being tested B: Mass of the substance being tested C: Mass of the standard solution D: Mass of the solute
The titrability Ts/x is the concentration expressed in terms of (B) equivalent to per mL of standard solution. A: Volume of the substance being tested B: Mass of the substance being tested C: Mass of the standard solution D: Mass of the solute
The titrability Ts/x is the concentration expressed in terms of (B) equivalent to per mL of standard solution. A: Volume of the substance being tested B: Mass of the substance being tested C: Mass of the standard solution D: Mass of the solute
The titrability Ts/x is the concentration expressed in terms of (B) equivalent to per mL of standard solution. A: Volume of the substance being tested B: Mass of the substance being tested C: Mass of the standard solution D: Mass of the solute
I believe the correct answer to this question is B.
Titer refers to the mass of the drug being tested per 1 mL of a titrant (standard solution) of a certain molar concentration, expressed in g/mL. Titrating the calcium-ion-containing sample solution with an EDTA standard solution of T(EDTA/CaO) = 0.5 mg/ml required 5 mL. Then the solution to be tested **contains 2.5 mg of CaO. Calculation method: T=n*M/V
Ahhhhhh, I made a mistake; it’s B