used a pipette to add 25 cm of sodium hydroxide of unknown concentration to a conical flask. The student carried out a titration to find out the volume of 0.1 mol/dm3 sulfuric acid needed to neutralise the sodium hydroxide. The following is the table of results obtained. Titration Volume of sulfuric acid used/cm³ 1 27.85 27.30 27.25 4 27.10 27.30 a. Write down a balanced equation for the reaction between sodium hydroxide and sulfuric acid. b. Describe the titration experimental procedure (details of washings are expected) c. Determine the average titre value and explain your choice of titre values in calculating the average. d. Determine the concentration of sodium hydroxide. e. If instead of sulfuric acid, hydrochloric acid of the same concentration was used what would you expect the average titre value to be and why?

used a pipette to add 25 cm of sodium hydroxide of unknown concentration to a conical flask. The student carried out a titration to find out the volume of 0.1 mol/dm3 sulfuric acid needed to neutralise the sodium hydroxide. The following is the table of results obtained. Titration Volume of sulfuric acid used/cm³ 1 27.85 27.30 27.25 4 27.10 27.30 a. Write down a balanced equation for the reaction between sodium hydroxide and sulfuric acid. b. Describe the titration experimental procedure (details of washings are expected) c. Determine the average titre value and explain your choice of titre values in calculating the average. d. Determine the concentration of sodium hydroxide. e. If instead of sulfuric acid, hydrochloric acid of the same concentration was used what would you expect the average titre value to be and why?

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...

See similar textbooks

Similar questions

How would I find the last column of the table?
sea water is analyzed and found to contain 2.25ng of gold for each 1.00l of sea water. how many grams of gold are in 1.00m3? (note: 1ml=1cm3)
A student prepares a 3.2M aqueous solution of benzoic acid (C,H,CO,H). Calculate the fraction of benzoic acid that is in the dissociated form in his solution. Express your answer as a percentage. You will probably find some useful data in the ALEKS Data resource. Round your answer to 2 significant digits. | % x10
2.000 g TUMS tablet (CaCO3 and Binder) was analyzed in a lab. 11.42 mL of 0.871 M HCI was needed to dissolve the CaCO3 (active ingredient) of TUMS Tablet. Find the mass and % by mass of CaCO3 in TUMS Tablets. ( 459.00 mg O 75% 50% 605.00 mg 30% O 25% O 400.00 mg O 500,00 mg
The solubility of CuBr in water at 25 °C is measured to be 0.010 L Round your answer to 2 significant digits. 0 Dx1 x10 Ś Use this information to calculate K for CuBr. sp
2- A sample of an acid 2.4 g dissolved in 100 ml. water. This sample was titrated with 40 ml sodium hydroxide (0.10 N). Find out the molecular mass of the acid knowing that it is mono-equivalent.
Saved Normal BIIIU fxl Ix Actual mass used in solution prep (g) Volume solution prepared Measured conductivity (uS/cm) Substance 0.1 g Naci 0.1003 100 mL 1149 0.1 g Nal 0.10 100 ml 419 Calculate the mass of Nal that would be necessary to yield the same conductivity as the NaCl solution. Clearly show these calculations in your lab notebook. Saved T BII U X X + fr Normal
ps://openvellum.ecollege.com/course.html?courseld=16594544&OpenVellumHMAC=e0a02f77f7d1 回☆ 21 v Part G Calculate (OH\for a solution formed by adding 4.10 mL of 0.100 M KOH to 10.0 mL of 6.3 x 102M C Ca(OH)2. Express your answer using two significant figures. [OH]]= 0.33 %3D M
QUESTION 3 You were tasked to determine the percentages of citric acid in the freshly squeezed and bottled lemon juice. The following data were obtained. Freshly Squeezed lemon juice Trials Volume of Titrant (ml) 1 25.5 Types of Lemon Juice Freshly Squezzed Bottled 11 12 25.5 3 25.5 -6. Bottled Lemon juice 26 7 1 18.5 Mass of 25 ml (g) Determine the percentages in terms of mass of citric acid in freshly squeezed lemon juice is given) Submited sare and submir. Click Saue Ad Aneers zo sate a 2 18.3 3 18.3 (mass in 25 ml 15°C
24 25 26 A chemistry student weighs out 0.0202 g of acrylic acid (HCH,CHCO,) into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1800M NAOH solution. Calculate the volume of NaOH solution the student will need to add to reach the equivalence point. Round your answer to 3 significant digits. mL x10 Continue Submit Assignment 2021 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center | Accessibility C 80 000 000 F1 F2 DII DD F3 F4 F5 F6 F7 F8 F9 F10 F11 F12 @ 2$4 % &
A student prepares a 0.38 mM aqueous solution of crotonic acid (C,H,CO,H). Calculate the fraction of crotonic acid that is in the dissociated form in his solution, Express your answer as a percentage. You will probably find some useful data in the ALEKS Data resource. Round your answer to 2 significant digits. % 0.2
Don