Q2.Show in detail how you would prepare 350 ml of 0.12M citrate buffer pH-5.1.(You must use the Ka values and Molecular weights given here). Explain clearly why your choice of chemicals. Show all calculations Citric acid Kai = 8.7 X 10-¹ Ka₂ 1.8 X 10-5 Kay = 4.0 X10-6 Molecular weight: Citric acid=192 Sodium Dihydrogen citrate=214 Disodium Hydrogen Citrate=236 Trisodium Citrate=258

Q2.Show in detail how you would prepare 350 ml of 0.12M citrate buffer pH-5.1.(You must use the Ka values and Molecular weights given here). Explain clearly why your choice of chemicals. Show all calculations Citric acid Kai = 8.7 X 10-¹ Ka₂ 1.8 X 10-5 Kay = 4.0 X10-6 Molecular weight: Citric acid=192 Sodium Dihydrogen citrate=214 Disodium Hydrogen Citrate=236 Trisodium Citrate=258

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

What is the boiling point of the unknown substance Xin K(Kelvin)? X(t) = X(g) AH-(kJ mol1) S°J mol1K1) X(g) -82.0 238 | X({) | -101 144 Express your answer in decimal notation rounded to three significant figures.
1
Hailey bought one TI30XIIS calculator and two packs of grid paper for Mrs. Smith's math class. She paid $17.25. Larry bought two TI30XIIS calculators and one pack of grid paper for $27.00. SHOW WORK. What was the cost of one TI30XIIS calculator? What was the cost of one pack of grid paper?
Q5 The circumference of a circle (C) is given by the equation below. If a circle has a radius (r) of 25 cm, what would be the circumference of the circle? (C1; ES3&6) * (1 Point) C = 2πr 157.1 cm 157.08 cm 157 cm 160 cm
Which of the following molecules are antihistamines? Check all that apply. ► View Available Hint(s) U 0 H-N L CH,CH,NH,* But CH–O–CH,CH,−N CH,CH,NHNH, H 4
Every year Every second (1 year 365 days).
Q 4 please
Convert 200C into K
2. What power does a pump develop to lift 45 L of water per minute from a depth of 115 m? (1L of water is equal to 1 kg)
METHANE EMISSIONS: Mass per time (m/t): megagrams, or teragrams per year (Mg yr–1, Tg yr–1) Mass per unit area per time (m/(l2 t): grams per square meter per day (g m–2 d–1) What's their difference? Can mass per unit area per time can be converted to mass per time?
Need help with homework
45. | You find that if you hang a 1.25 kg weight from a vertical spring, it stretches 3.75 cm. (a) What is the force constant of this spring in N/m? (b) How much mass should you hang from the spring so it will stretch by 8.13 cm from its original, unstretched length?