Learn more about our help with Assignments: Physical Chemistry
Search & Filtering
Physical Chemistry
In the ground state,an element has 13 electrons in its M shell. The element is
(1) Manganese
(1) Cobalt
(3) Nickel
(4) Iron
(1) Manganese
(1) Cobalt
(3) Nickel
(4) Iron
Physical Chemistry
The density of mercury is 13.51 g/mL. If you have 2.50 kg of liquid mercury, what volume would it occupy?
Physical Chemistry
The value of plank's constant is 6.6*10^-34Js. The speed of light is 3*10^17nm/sec. Which value is closest to the wavelength in nanometer of a quantum of light with frequency of 6*10^15 sec?
(1)25
(2)50
(3)75
(4)10
(1)25
(2)50
(3)75
(4)10
Physical Chemistry
for the reaction equilibrium 2NOBr(g) ⇌2NO(g)+Br2(g)
if partial pressure of Br2= P/9 where P is the total pressure, the ratio of Kp/P is?
Answer says it is 1/81 but how?
if partial pressure of Br2= P/9 where P is the total pressure, the ratio of Kp/P is?
Answer says it is 1/81 but how?
Physical Chemistry
Calculate the radius of the third orbit of Li2+ ion. Also calculate the energy of the electron in the second orbit of Li2+ ion.
Physical Chemistry
If you have one dozen formula units of Mg(OH)2, how many hydrogen atoms do you have?
Physical Chemistry
Sulphur dioxide and nitrogen peroxide can act as an oxidizing as well as reducing agent why?
Physical Chemistry
1. predict the shape of crystal geometry of KBr
2. draw a diagram indicating the arrangement of K+ and Br- ions in the crystal
2. draw a diagram indicating the arrangement of K+ and Br- ions in the crystal
Physical Chemistry
0.1 M of HCl and 0.1M of CH3COOH each of 100ml are mixed. Find the pH of solution.
Physical Chemistry
A STANDARD HARD WATER CONTAIN 15gm of caco3 per litre 20ml of this standard water required 25ml of edta solution 100ml of an unknown sample of water required 18ml edta solution .the same sample water after boiling required 12 ml edta solution .calculate the temporary hardness of the given sample water in term of ppm.
