The molar extinction coefficient of B (MW = 180) is 4x10 lit mol' cm'. One liter solution of C which contains 0.1358 g pharmaceutical preparation of B, shows an absorbance of 0.411 in a 1 cm quartz cell. The percentage (w/w) of B in the pharmaceutical preparation is: (a) 10,20 (b) 14.60 (c) 20.40 (d) 29. 12

The molar extinction coefficient of B (MW = 180) is 4x10 lit mol' cm'. One liter solution of C which contains 0.1358 g pharmaceutical preparation of B, shows an absorbance of 0.411 in a 1 cm quartz cell. The percentage (w/w) of B in the pharmaceutical preparation is: (a) 10,20 (b) 14.60 (c) 20.40 (d) 29. 12

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

39
Q2/ Calculate the activation energy in( ev /atom) for vacancies formatiom of ( Al ) has ( 7.57 x 10") ( vacancy per m') at 500 e, atomic weight of (26.98) g/m, density of (2.62) g/em', (Vc) of (1) , avagadro number of (6.022 x 10), K of ( 8.62 x 10 ) ev/ atom-k
5. (a) Given that the solubility product of rhodochrosite, MNCO3, is 10-9.3, calculate the equilibrium constant for the reaction MNCO3 + H2CO3 = Mn²+ + 2HCO . (b) Qualitatively, how is the equilibrium constant affected by a change in pH from 6 to 8? (c) How is the solubility of MNCO3 affected by this change?
What term most accurately describes the process below? ... Br + HBr (A hydrogen abstraction B halogen abstraction c) coupling D proton transfer
Q7) what is the pH at the equivatent point in the titration of 5 mmol Potassium acid ph thalate dissolved in 100 mel of water and titrat ed with 0.1M NaoH 9 K, = 4 +r56 %3D Ans. : 8.46
Indicate which of the systems beloware product-favored. Choose one or more: Keg82x 104 O 280, (s)+ 0,(s) 280,(g) under high pressure Q=41x 10, K35 104 1. -38K 108 Yea
(b) Using diagrams and chemical structures, explain why zinc is a suitable metal in carbonic anhydrase and carboxypeptidase. (c) Mollusks are blue-blonds Give a detailed aro [5]
Open the photo
deriving equation from equation 2 and 3
Plz do Asap....!
DONT FORGET TO PREDICT THE PRODUCTS
1) Protein A has a binding site for ligand X with a dissociation equilibrium constant of 4.0 x 10-8 The association equilibrium constant for ligand X and protein A is: