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The titration curve given is,
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- Explain the difference between an indicator endpoint for a titration analysis and the true equivalence point for the titration. Please simplify the answer so I can understand. ThanksFor each combination of acid and base below, what is the relative pH at the equivalence point of the titration? 1) HCO₂H + NaOH: [Select] CIRC 2) HNO₂ + NH3: [Select] 3) H₂SO4 + LIOH: [Select] 4) HBr + KOH: [Select] <At which point of a titration curve, is the pH value of the solution equal to the pKa of the weak acid? O at the quarter equivalence point O at the equivalence point O at the half equivalence point
- For each scenario below, select the color of the solution using the indicator thymol blue during the titration. When you first add indicator to your Na₂CO3 solution, the solution is basic (pH ~10), and the color is [Select] At the equivalence point for the titration, the moles of added HCI are equal to the moles of Na₂CO3. One drop (or less!) past this is called the endpoint. The added HCI begins to titrate the thymol blue indicator itself. At the endpoint, the indicator color is [Select] When you weren't paying attention and added too much HCI (~12 mL extra), the color is [Select] When you really weren't paying attention and reached the second equivalence point of Na₂CO3, the color is [Select ]A 50.0-ml sample of 0.20 M hydrochloric acid (HCI) is titrated with 0.5 M LIOH. Determine the pH of the solution after the following volumes of LIOH titrant are added. Express your answers to two decimal places. a) pH after 10 mL of LIOH added: b) pH after 20 mL of LIOH added: c) pH after 30 mL of LIOH added: CheckAn aqueous solution of an unknown solid salt was placed into five different test tubes. Into each test tube a couple of drops of different indicators were then added to each test tube and the color of the indicator in the solution was recorded as shown below. What is the approximate pH of the solution? Test pH Acid Base Color in Unknown Indicator tube Range Color Color Solution 3.0 - 1 Methyl orange 4.4 Red Yellow Yellow 3.0 - Congo Red Purple Red Red 5.0 Bromcresol 3.8 - Yellow Blue Blue Green 5.4 Bromthymol 6.0 - 7.6 4 Yellow Blue Yellow Blue 8.2 - Phenolphthalein Colorless Blue Colorless 10.0 4.3 O 8.4 O 5.2 6.7
- In the titration of HF with NaOH, which species are present at the equivalence point? O HF, NAOH, and H20 only O NaF, NAOH, and H20 only O NaF, HF, and H20 only O NaF and H20 only O HF and H20 onlyFor each scenario below, select the color of the solution using the indicator thymol blue during the titration. When you first add indicator to your Na2CO3 solution, the solution is basic (pH ~10), and the color is [Select] At the equivalence point for the titration, the moles of added HCI are equal to the moles of Na2CO3. One drop (or less!) past this is called the endpoint. The added HCI begins to titrate the thymol blue indicator itself. At the endpoint, the indicator color is [Select] When you weren't paying attention and added too much HCI (~12 mL extra), the color is [Select] When you really weren't paying attention and reached the second equivalence point of Na2CO3, the color is ✓ [Select] blue yellow red orange green Question 9The pH value of titration of formic acid ( weak acid ) and ammonium hydroxide ( weak base ) at end point must be 7 False O True
- What indicators is best suitable for this titration curve of a weak acid & a strong base?titration of acetic acid: what is the pH after 10.00mL sodium hydroxide solution are added? the mL base needed to reach equivalence point: 25.5 mLThe pH at the equivalence point of a strong acid-strong base titration cannot be determinined without more information is basic is acidic is exactly 7.00