Calculate or qualitatively correct titration curves

Assignment Help Chemistry

Reference no: EM132092210

Question 1: Calculate or qualitatively correct titration curves for the following acid-base titrations.

(a) 25.0 mL of 0.100 M NaOH with 0.0500 M HCI

(b) 50.0 mL of 0.0500 M HCOOH with 0.100 M NaOH

(d) 50.0 mL of 0.0500 M ethylenediamine with 0.100 M HCI

(e) 50.0 mL of 0.0400 M citric acid with 0.120 M NaOH

(f) 50.0 mL of 0.0400 M H₃PO₄ with 0.120 M NaOH

Question 2:

The protein in a 1.2846-g sample of an oat cereal is determined by the Kjeldahl procedure for organic nitrogen The sample is digested with H₂SO₄, the resulting solution made. basic with NaOH, and the NH₃ distilled into 50.00 mL of 0.09552 M HCl. The excess HCl is then back titrated using 37.84 mL of 0.05992 M NaOH. Given that the protein in grains averages 17.54% w/w N, report the %w/w protein in the sample of cereal.

Reference no: EM132092210

Questions Cloud

Casual communication and that of more formal nature : But can we, in a business setting, differentiate between our casual communication and that of a more formal nature?

What is the total payroll cost for the given period : Calculating Net Pay Lightning Electronics is a mid-size manufacturer of lithium batteries. The company's payroll records for the November 1-14 pay period show.

Customer service field for the rest of your career : To date, what has been the most challenging part of this business? Do you see yourself remaining in Customer Service field for the rest of your career?

What is the gross earnings for the week : Calculating Gross Earnings Dan Carotene earns a regular pay rate of $20 per hour for the first 40 hours per week and time and a half for anything over 40 hours.

Calculate or qualitatively correct titration curves : Calculate or qualitatively correct titration curves for the acid-base titrations - report the %w/w protein in the sample of cereal

What is the proper reporting of the liability each year : Reporting a Contingent Liability Buzz Coffee Shops is famous for its large servings of hot coffee. After a famous case involving McDonald's.

Devise a game plan for antonios change : Imagine that you are Antonio's teacher. Antonio obviously wants to make a change. As a fourth grader, it is almost impossible to do this alone.

What are some of the disadvantages of countertrade : What are some of the disadvantages of countertrade? What are some ways in which to ensure quality from unknown suppliers?

Does the warranty cost estimate appear accurate : Accounting for Warranty Liabilities Hugo Watch Company, based in Livingston, Montana, sold $10,000 of watches in January under a six month warranty.

User Account

All Pages