What is molarity os the resulating solution obtained by mixing 2.5 L of 0.5 M urea solution and 500 mL of 2M urea solution ?

What is molarity of the resulting solution obtained mixing 2.5 L of 0.5 M urea solution and 500 mL of 2M urea solution ?

Calculate molarity of the resultant solution obtained by mixing 1 M and 2 .5 liter NaON solution and 0.5 M 3 liter NaOH solution .

Calculate molarity of the resultant solution obtained by mixing 1 M and 2 .5 liter NaOH solution and 0.5 M 3 liter NaOH solution .

What will be the pH of a solution formed by mixing 50 mL of 0.5 M HCl solution and 150 mL of 0.5 M NaOH solution and 300 mL H_(2) O ?