Which of the following concentration terms is dependent on temperature?

The molarity of $0.006 \ mol$ of $NaCl$ in $100 \ mL$ solution is (in $M$)

The formula weight of $H_2SO_4$ is $98$. The weight of the acid in $400 \ mL$ of $0.1 \ M$ solution is ........... $g$.

Explain the concept of reactions in solutions and mass percentage.

What are the mole fraction of water and the total number of moles in a solution formed by dissolving $1$ mole of urea in $1000 \ g$ of pure water,respectively?

State the various methods of expressing the concentration of a solution.