Objective Knowledge Check Question 6 Caliyah A chemistry student weighs out 0.259 g of ascorbic acid (H,C H¸O,), a diprotic acid, into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1400M NaOH solution. Calculate the volume of NAOH solution the student will need to add to reach the final equivalence point. Be sure your answer has the correct number of significant digits. O mL x10 I Don't Know Submit 2021 MCGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Accessibility

Objective Knowledge Check Question 6 Caliyah A chemistry student weighs out 0.259 g of ascorbic acid (H,C H¸O,), a diprotic acid, into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1400M NaOH solution. Calculate the volume of NAOH solution the student will need to add to reach the final equivalence point. Be sure your answer has the correct number of significant digits. O mL x10 I Don't Know Submit 2021 MCGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Accessibility

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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MULTIPLE CHOICE QUESTION You perform a titration using a 0.198 M concentration of Ba(OH)2 as the base against 25.00 mL of nitrous acid (HNO2). You found that you needed 18.85 mL of Ba(OH)2 to reach the end point of the reaction. What is the concentration of the nitrous acid? 3.35 M HNO2 0.298 M HNO2 0.000298 M HNO2 Rewatch Submit
EXPERIMENT 10 PRE-LABORATORY QUESTIONS STANDARDIZATION OF A SODIUM HYDROXIDE SOLUTION NAME DATE 1. What is the purpose of this experiment? 2. A sample of KHP has a mass of 2.345 g is used for a titration, how many moles of KHP is this sample? 3. How many moles of NaOH would be needed to reach the endpoint of this titration with sample of KHP from the previous question? 4. If the initial volume of the NaOH in the burette was 0.50 mL and the final volume is shown to the right, what is the volume of NaOH used in this titration? 19 5. What is the concentration of the NaOH solution used in this titration? EXPERIMENT 10 155
so you MOTO 0.100 HF 0.100 M HCl and 0.100 M NaOH 0.100 M NaCl and 0.100 M KC 20¹4-NWOT PHOTO
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Forget to click Subm Question 13 The titration of 25.0 mL of an unknown concentration H2SO4 solution requires 66.5 mL of 0.12 M LIOH solution. What is the concentration of the H2SO4 solution (in Molarity)? H2SO4 + 2 LIOH – 2 H20 + LI2SO4 Nex Previous Su No new data to save. Last checked at 9:17am MacBook Air 80 888 DII F1 F2 F3 F4 F5 F6 F7 F8 #3 $ 4 & 2 7 8 9. E R Y U
D Try Again Your answer is incorrect. A chemistry student weighs out 0.371 g of citric acid (H₂CH₂O₂), a triprotic acid, into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.0900M NaOH solution. Calculate the volume of NaOH solution the student will need to add to reach the final equivalence point. Be sure your answer has the correct number of significant digits. 8.38 mL x10
If 21.42 mL of 0.1360 M NaOH is needed to fully titrate a solution made with 0.1422 g of a diprotic acid, what is the experimental molar mass of the acid? 75.46 g/mol 612.8 g/mol 211.7 g/mol 97.63 g/mol 553.8 g/mol
question 2 please
QUESTION 30 Below is a titration curve of a sample of monoprotic acid (HA) by NaOH. Which is most likely the acid? 15 Hd 12 10 6 2 0 0 10 20 volume of strong base (mL) O H-CIO₂ (pKa = 1.96) OH-CN (pKa = 9.2) O H-C₂H302 (pKa = 4.7) O HCO2-H (pKa = 3.7) OH-NO3 30 40 50 60 70 Click Save and Submit to save and submit. Click Save All Answers to save all answers. f4 H a 7 f7 f8 $ www S
QUESTION 2 a) The pH solution is 5.28 at equivalence point. Identify the correct type of acid-base pair titration with the correct examples. b) An analytical chemist need to determine the content of calcium carbonate present in a 0.125 g eggshell sample. The sample was dissolved in a 50.00 mL of 0.200 M of hydrochloric acid, first standard reagent. The next analysis is titration of the excess acid which required 32.12 mL of 0.250 M sodium hydroxide, the second reagent. Calculate the percentage by weight the purity of calcium carbonate in the eggshell sample. CaCO3 + 2HCI CaCl₂ + CO₂ + H2₂O