What is the $pH$ of a $NaOH$ solution with a concentration of $0.01 \ g \ L^{-1}$?

Calculate the $pH$ of the following solutions:
$(a)$ $0.002 \ M \ HNO_3$
$(b)$ $0.06 \ M \ H_2SO_4$

If $0.561 \, g$ of $KOH$ is dissolved in water to give $200 \, mL$ of solution at $298 \, K$. Calculate the concentrations of potassium,hydrogen and hydroxyl ions. What is its $pH$?

What will be the $H^{+}$ ion concentration when $4 \ g$ $NaOH$ is dissolved in $1000 \ mL$ solution?

If a solution of $10^{-6} \ M \ HCl$ is diluted $100$ times,the $pH$ of the solution is:

The $pH$ of an aqueous solution containing $[H^{+}] = 3 \times 10^{-3} \ M$ is