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This post was last edited by zjp on 2015-10-4 at 11:17. To increase the popularity of the chemical analysis section, a \"Question of the Day\" activity has been introduced; this aims to foster active technical exchanges while also providing members with certain financial rewards. 【Daily Question】(Single-choice question) At 10°C, 26.00 mL of a 0.1 mol/L standard solution was used in the titration. At this temperature, the correction value for 1 liter of a 0.1 mol/L standard solution is +1.5 mL. What is the volume of this solution at 20°C? ( ) mL. A.26 B.26.04 C.27.5 D.24.5 Standard answer: At this temperature, the correction value for 1 liter of a 0.1 mol/L standard solution is +1.5 mL. Therefore, the correction value for 26.00 mL is calculated as 1000 : 1.5 = 26.00 : x, which gives x = 0.039 mL. The total volume is thus 26.00 + 0.039 = 26.039 mL, approximately equal to 26.04 mL. Please reply with your answer; answering correctly earns you +2 wealth points. Those who get all answers right receive an additional +3 to +8 wealth points. Those who provide a thorough analysis or detailed calculation process for the questions and answers will receive extra wealth points as well. If your answer is correct and your analysis is accurate, it will be marked as the best reply. 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.
At 10°C, 26.00 mL of the 0.1 mol/L standard solution was required for titration. At this temperature, the correction value for 1 liter of the 0.1 mol/L standard solution is +1.5 mL; therefore, the volume of this solution at 20°C is (C) mL. A.26 B.26.04 C.27.5 D.24.5
At 10°C, 26.00 mL of a 0.1 mol/L standard solution was required for titration. At this temperature, the correction value for 1 liter of a 0.1 mol/L standard solution is +1.5 mL; therefore, the volume of this solution at 20°C is (C) mL. A.26 B.26.04 C.27.5 D.24.5
At 10°C, 26.00 mL of the 0.1 mol/L standard solution was required for titration. At this temperature, the correction value for 1 liter of the 0.1 mol/L standard solution is +1.5 mL; therefore, the volume of this solution at 20°C is (c) mL.
B.26.04 ..............................
At 10°C, 26.00 mL of the 0.1 mol/L standard solution was required for titration. At this temperature, the correction value for 1 liter of the 0.1 mol/L standard solution is +1.5 mL; therefore, the volume of this solution at 20°C is ( ) mL. B.26.04
At 10°C, 26.00 mL of the 0.1 mol/L standard solution was required for titration. At this temperature, the correction value for 1 liter of the 0.1 mol/L standard solution is +1.5 mL; therefore, the volume of this solution at 20°C is (B) mL. A.26 B.26.04 C.27.5 D.24.5
At 10°C, 26.00 mL of the 0.1 mol/L standard solution was required for titration. At this temperature, the correction value for 1 liter of the 0.1 mol/L standard solution is +1.5 mL; therefore, the volume of this solution at 20°C is (B) mL. A.26 B.26.04 C.27.5 D.24.5
At 10°C, 26.00 mL of the 0.1 mol/L standard solution was required for titration. At this temperature, the correction value for 1 liter of the 0.1 mol/L standard solution is +1.5 mL; therefore, the volume of this solution at 20°C is (B) mL.
At 10°C, 26.00 mL of the 0.1 mol/L standard solution was required for titration. At this temperature, the correction value for 1 liter of the 0.1 mol/L standard solution is +1.5 mL; therefore, the volume of this solution at 20°C is (B) mL. A.26 B.26.04 C.27.5 D.24.5