Rajendra Kumar

Numerade Educator
Tutor

Biography

I am a chemistry tutor and i am workin from last 4 year as subject matter expert.

Education

Rajendra has not yet added their education credentials.

Educator Statistics

Numerade tutor for 4 years
119 Students Helped

Topics Covered

Discover the Wonders of Chemistry: Your Introductory Guide

Rajendra's Textbook Answer Videos

1

Rajendra's Quick Ask Videos

04:32
Chemistry 101

The freezing point of water is 0.00°C at 1 atmosphere.
A student dissolves 13.81 grams of manganese(II) chloride, MnCl2 (125.8 g/mol), in 275.5 grams of water. Use the table of boiling and freezing point constants to answer the questions below.
Solvent Formula Kb (°C/m) Kf (°C/m)
Water H2O 0.512 1.86
Ethanol CH3CH2OH 1.22 1.99
Chloroform CHCl3 3.67
Benzene C6H6 2.53 5.12
Diethyl ether CH3CH2OCH2CH3 2.02
The molality of the solution is ___ m.
The freezing point of the solution is ___°C.

Rajendra Kumar
04:11
Chemistry 101

Benzene shows absorption around 3050 cm-1 that corresponds to a vibrational excitation of a C-H bond, of which benzene has six. What is the expected frequency?
A. 9.8x10^13s-1
B. 9.15x10^-13s-1
C. 9.15x10^13s-1
D. 9.8x10^13s-1

Rajendra Kumar
02:56
Chemistry 101

Find the oxidation number of C in COCl2.

Rajendra Kumar
02:47
Chemistry 101

Express the equilibrium constant for the following reaction.
KClO3 (s) <----> KClO (s) +
O2 (g)
K =
[O 2] -1
K = [O 2]

Rajendra Kumar
03:27
Chemistry 101

What is the maximum number of electrons that can have ml=0 with
principle quantum number n=4

Rajendra Kumar
04:34
Chemistry 101

Given the following reaction at 298 K:
2H2S(g) + SO2(g) → 3/8S8(s) + 2H2O(g)
ΔrG° = -102 kJ/mol

a. Determine the value of the reaction quotient Q when: PH2S = 2.00 bar; PSO2 = 0.165 bar; and PH2O = 1.284 bar.

b. Calculate the equilibrium constant for this reaction at 298 K.

Rajendra Kumar
1 2 3 4 5 ... 20