57% OP 6:01Asiacell l.التجربة الرابعة - اول مسائي.pdfامتحان بالتجربة الرابعة المرحلة الأولى مسائيAnswer these questions: Examination time: 30 minQ1// Complete these statements:1- Titrand should be put in .....2- Indicator should be added to .....3- Titrand have known ....... and unknown ......4- Indicator is used to ........5- Titrant have known....... and unknown .........6- Titrant should be put in ...Q2// prepare 0.1 N standard solution of C,H204.2H;O in 50 ml ofdistilled water, using the law of molar concentration above, if theatomic weight of C = 12 0=16 H=1Q3// Write these chemical equations:1- Reaction of hydrochloric acid aqueous solution & sodiumhydroxide aqueous solution2- Reaction of sodium hydroxide and water3- The net ionic reaction of (reaction 1)Assistant Professor/ Dr. Nidhal. Yousif. Mohammed

Answered: Image /qna-images/answer/bb0bccd9-73cf-4708-9eb7-81bd2ae3754a.jpg

امتحان بالتجربة الرابعة المرحلة الأولى مسائي Answer these questions: Examination time: 30 min Q1// Complete these statements: 1- Titrand should be put in ... 2- Indicator should be added to ... 3- Titrand have known. .. and unknown ...... ......... 4- Indicator is used to 5- Titrant have known . . and unknown .. ........ 6- Titrant should be put in .. Q2// prepare 0.1 N standard solution of C,H,O4.2H,O in 50 ml of distilled water, using the law of molar concentration above, if the atomic weight of C = 12 0=16 H =1 Q3// Write these chemical equations: 1- Reaction of hydrochloric acid aqueous solution & sodium hydroxide aqueous solution 2- Reaction of sodium hydroxide and water 3- The net ionic reaction of (reaction 1) Assistant Professor/ Dr. Nidhal. Yousif. Mohammed

امتحان بالتجربة الرابعة المرحلة الأولى مسائي Answer these questions: Examination time: 30 min Q1// Complete these statements: 1- Titrand should be put in ... 2- Indicator should be added to ... 3- Titrand have known. .. and unknown ...... ......... 4- Indicator is used to 5- Titrant have known . . and unknown .. ........ 6- Titrant should be put in .. Q2// prepare 0.1 N standard solution of C,H,O4.2H,O in 50 ml of distilled water, using the law of molar concentration above, if the atomic weight of C = 12 0=16 H =1 Q3// Write these chemical equations: 1- Reaction of hydrochloric acid aqueous solution & sodium hydroxide aqueous solution 2- Reaction of sodium hydroxide and water 3- The net ionic reaction of (reaction 1) Assistant Professor/ Dr. Nidhal. Yousif. Mohammed

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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What is the best sequence of steps for filling the burette with NaOH for a titration? Lower the burette to eye' level, insert the funnel in the top of the burette, slowly add the NaOH through the funnel, check the burette stopcock is closed O Check the burette stopcock is closed, lower the burette to eye level, insert a funnel in the top of the burette, slowly add the NaOH through the funnel Check the burette stopcock is closed, insert the funnel in the top of the burette, slowly add the NaOH through the funnel, lower the burette to eye level
The graph below represents the titration curve of a A. 1 M strong acid with 1 M strong base B. 1 M weak base with 1 M strong acid C. 1 M strong base with 1 M strong acid D. 1 M weak base with 1 M weak acid E. 1 M weak acid with 1 M strong base
The experimental procedure above was used to generate the data in the tables below. Data Collection Table Titration Mass of Sample Initial Buret Reading (mL) Final Buret Reading (mL) 1 1.234 1.05 19.95 2 1.213 4.00 23.50 3 1.273 0.30 20.05 4 1.292 5.95 25.65 - For each titration, calculate: - The number of moles of potassium permanganate used in the titration (H x L of KMnO4) - The number of moles of iron present in the sample (stoichiometry in balanced equation) - The percentage by mass of iron in the solid sample (Equation 1) - The average mass % of iron in your unknown - The standard deviation in your % Fe results:
help please answer in text form with proper workings and explanation for each and every part and steps with concept and introduction no AI no copy paste remember answer must be in proper format with all working
What volume (mL) of 0.2173M NaOH is required to titrate 50.00mL of 0.2980M HCI ?In the titration of 50.00mL of 0.2980M HCl. 71.93mL of 0.2173M NaOH was required to reach the phenolphthalien endpoint. Calculate the percent error between the predicted amount and the experimental amount. What does this tell you about the concentration of the NaOH? This is based on your answers to questions 1 and 2. Question 3 options: The concentration of the NaOH is 0.2173M. The concentration of the NaOH is stronger that 0.2173M. Nothing new The concentration of the NaOH is weaker than 0.2173M. Please answer fast i give upvote.
Please look at the graph weak acid/strong base titration curve. Answer the questions below. Fill in the blank with your response. Do not include any units in your answer. Acid-Base Titration 12 10 8. 6. 2. 4. 6. 8. 10 12 Volume (mL) A. The approximate pH at the equivalence point is (Please reply with a 2-digit answer) B. The approximate volume of base added at the equivalence point is mL. (Please reply with a 2-digit answer) C. The volume of base added when pH = pKa is mL. (Please reply with a 2-digit %3D answer) 2.
Question Completion Status: For Solution A, approximately how many mL of HCI were needed to exceed the buffering capacity of this solution? Enter the number only. Don't enter units as part of your answer and don't use commas or scientific notation. Titration curve of Solution A 14 13 12 11- 10 9 8 pH 7 6 5 4 3 2 1 5 4 3 2 1 HCI added (mL) 0 1 2 3 4 5 NaOH added (mL) 14 13 12- 11 10 9 8 pH 7 6.8 2 65 4 3 2 1 Titration curve of Solution B Click Save and Submit to save and submit. Click Save All Answers to save all answers. 54 32 1 HCI added (mL) 0123 NaOH added (mL)
Weak Base + Strong Acid Titration - Example Problem: Titration of 25 mL of .1 M NH3 With .1 M HCl: a. 0 mL. b. 12.5 mL. c. 20 mL. d. 25 mL. e. 30 mL.
14 Given the hypothetical titration curves below, determine what curve has a stronger acid. 14 a. b. C. d. 12 10 8 6 4 () 0 Curve A Curve B Curve C Cannot be determined A B and C 10 20 30 40 50 60 Volume of 0.1000 M NaOH, mL
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Use the References to access important values if needed for this question. A 30.0 mL sample of 0.316 M diethylamine, (C₂H5)2NH, is titrated with 0.245 M hydroiodic acid. At the titration midpoint, the pH is Use the Tables link in the References for any equilibrium constants that are required. Submit Answer Retry Entire Group 8 more group attempts remaining Previous Email Instructor Nex Sav
Interpret pH titration plots. Answer the following about the titration plot shown below, involving a monoprotic acid and base. 20 mL of 0.1M titrand titrated with 0.1M titrant. Data points at 1 mL increments. 14.0 12.0 10.0 5 8.0 6.0 4.0 2.0 0.0 seededood 0 0.0 10.0 مهمه 20.0 30.0 Volume of titrant (mL) (a) Is the species being titrated an acid or a base? (b) Is the species being titrated strong or weak? (c) What is the value of Ka (if a weak acid) or K, (if a weak base) for the species being titrated? If the species is strong (100% dissociated), enter 999. rààààààààà 40.0 50.0