【Daily Question】November 14, 2015: Participation +2 Wealth； +3 to 8 wealth for correct answers
Thread Content
This post was last edited by zjp on 2015-11-17 08:17. 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) When titrating a mixture of NaOH and NaCO3 with HCl to the first stoichiometric point, the pH of the solution is approximately ( ). A > 7 B < 7 C = 7 D < 5. Correct answer: A. Reply with your answer in the comments; you will receive +2 wealth points for participating in the quiz. An additional +3 to +8 wealth points will be given if all answers are correct. Extra wealth points will also be awarded if a thorough analysis and explanation of the questions or answers is provided, or if detailed calculation processes are shown. 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. 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.
When titrating the NaOH+NaCO3 mixed base with HCl to the first stoichiometric point, the pH of the solution is approximately (B). A >7 B <7 C =7 D <5
When titrating the NaOH+NaCO3 mixed base with HCl to the first stoichiometric point, the pH of the solution is approximately (>7).
When titrating the NaOH+NaCO3 mixed base with HCl to the first stoichiometric point, the pH of the solution is approximately ( ). A > 7
A > 7 !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
When titrating the NaOH+NaCO3 mixed base with HCl to the first stoichiometric point, the pH of the solution is approximately (A). A >7 B <7 C =7 D <5
When titrating the NaOH+NaCO3 mixture with HCl to the first stoichiometric point, the pH of the solution is approximately (A > 7).
A > 7. . . . . . . . . . . . . . . . . . . . .
When titrating the NaOH+NaCO3 mixture with HCl to the first stoichiometric point, the pH of the solution is approximately (A > 7).
When titrating the NaOH+NaCO3 mixture with HCl to the first stoichiometric point, the pH of the solution is approximately (A > 7).