Hello My Dear Students,

Life is full of queries and questions. But If you get a perfect guide who tells you how to solve the problems. Definitely you can conquer the world. My motive is to solve chemistry related problems of my beloved students. So in my free time, I try to solve chemistry problems and post them on my personal channel. If you face any problem regarding Chemistry. You can post your query in Comment section. I ll try to solve and post it as soon as possible.

Regards
Dr. Bandhana Sharma

Justify that the reaction:2Cu2O (s) + Cu2S (s) → 6Cu (s) + SO2 (g) is a redox reaction...
8:13
Justify that the reaction:2Cu2O (s) + Cu2S (s) → 6Cu (s) + SO2 (g) is a redox reaction...
Using stock notation represent following compounds: HAuCl4, Ti2O, FeO, Fe2O3, CuI, CuO, MnO and MnO2
6:55
Using stock notation represent following compounds: HAuCl4, Ti2O, FeO, Fe2O3, CuI, CuO, MnO and MnO2
Justify that the reaction: 2Na (s) + H2 (g) → 2NaH (s) is a redox change.
3:58
Justify that the reaction: 2Na (s) + H2 (g) → 2NaH (s) is a redox change.
In the reaction given below, identify the species undergoing oxidation and reduction:
9:27
In the reaction given below, identify the species undergoing oxidation and reduction:
What will be the molarity of a solution, which contains 5.85g of NaCl (s) per 500mL?
4:37
What will be the molarity of a solution, which contains 5.85g of NaCl (s) per 500mL?
If 500mL of a 5M solution is diluted to 1500mL, what will be the molarity of the solution obtained?
2:37
If 500mL of a 5M solution is diluted to 1500mL, what will be the molarity of the solution obtained?
In one molal solution that contains 0.5 mole of a solute, there is (i) 500mL of solvent......
3:31
In one molal solution that contains 0.5 mole of a solute, there is (i) 500mL of solvent......
The empirical formula and molecular mass of a compound are CH2O and 180g respectively. What will...
4:10
The empirical formula and molecular mass of a compound are CH2O and 180g respectively. What will...
If the density of a solution is 3.12 g mL^-1, the mass of 1.5mL solution in significant figures is …
2:45
If the density of a solution is 3.12 g mL^-1, the mass of 1.5mL solution in significant figures is …
A measured temperature on Fahrenheit scale is 200oF. What will be this reading be on Celsius scale?
2:18
A measured temperature on Fahrenheit scale is 200oF. What will be this reading be on Celsius scale?
What is the basic difference between the terms electron gain enthalpy and electronegativity?
4:25
What is the basic difference between the terms electron gain enthalpy and electronegativity?
Would you expect the second electron gain enthalpy of O as positive, more negative or less....
3:11
Would you expect the second electron gain enthalpy of O as positive, more negative or less....
Be2+ is isoelectronic with which of the following ions?(i) H+ (ii) Li+ (iii) Na+ (iv) Mg2+
4:00
Be2+ is isoelectronic with which of the following ions?(i) H+ (ii) Li+ (iii) Na+ (iv) Mg2+
Calculate the energy in joule corresponding to light of wavelength 45nm. (Planck's constant.......
4:19
Calculate the energy in joule corresponding to light of wavelength 45nm. (Planck's constant.......
The value of Planck's constant is 6.63 X 10^-34 Js. The speed of light is 3 X 10^17 nm s-1.....
3:22
The value of Planck's constant is 6.63 X 10^-34 Js. The speed of light is 3 X 10^17 nm s-1.....
The energies E1 and E2 of two radiations are 25 eV and 50 eV respectively. The relation between....
2:47
The energies E1 and E2 of two radiations are 25 eV and 50 eV respectively. The relation between....
A mixture of gases contains H2 and O2 gases in the ratio of 1:4 (w/w). What is the molar ratio of...
5:12
A mixture of gases contains H2 and O2 gases in the ratio of 1:4 (w/w). What is the molar ratio of...
Suppose the elements X and Y combine to form two compounds XY2 and X3Y2. When 0.1mole of XY2 weighs
6:40
Suppose the elements X and Y combine to form two compounds XY2 and X3Y2. When 0.1mole of XY2 weighs
At STP, the density of CCl4 vapour in g/L will be nearest to _____________.
3:42
At STP, the density of CCl4 vapour in g/L will be nearest to _____________.
What is the change in oxidation number of carbon in the following reaction ?
3:07
What is the change in oxidation number of carbon in the following reaction ?
The number of protons, neutrons and electrons in 175Lu71 , respectively, are:
2:47
The number of protons, neutrons and electrons in 175Lu71 , respectively, are:
An organic compound contains 78% (by wt.) carbon and remaining percentage of hydrogen......
5:56
An organic compound contains 78% (by wt.) carbon and remaining percentage of hydrogen......
What would be the IUPAC name and symbol for the element with atomic number 120?
1:56
What would be the IUPAC name and symbol for the element with atomic number 120?
It has been found that the pH of a 0.01M solution of an organic acid is 4.15....
14:05
It has been found that the pH of a 0.01M solution of an organic acid is 4.15....
The ionization constant of phenol is 1.0 X 10^-10. What is the concentration of phenolate ion in....
16:54
The ionization constant of phenol is 1.0 X 10^-10. What is the concentration of phenolate ion in....
The ionization constant of acetic acid is 1.74 X 10^-5. Calculate the degree of dissociation of....
10:58
The ionization constant of acetic acid is 1.74 X 10^-5. Calculate the degree of dissociation of....
The ionization constant of HF, HCOOH and HCN at 298K are 6.8 X 10^-4, 1.8 X 10^-4 and 4.8 X 10^-9..
8:21
The ionization constant of HF, HCOOH and HCN at 298K are 6.8 X 10^-4, 1.8 X 10^-4 and 4.8 X 10^-9..
The pH of a sample of vinegar is 3.76. Calculate the concentration of hydrogen ion in it.
5:57
The pH of a sample of vinegar is 3.76. Calculate the concentration of hydrogen ion in it.
The concentration of hydrogen ion in a sample of soft drink is 3.8 X 10^-3 M. What is its pH?
4:01
The concentration of hydrogen ion in a sample of soft drink is 3.8 X 10^-3 M. What is its pH?
Classify the following species into Lewis acids and Lewis bases and show how these act as Lewis...
6:32
Classify the following species into Lewis acids and Lewis bases and show how these act as Lewis...