You have a 55 mL of a 4.3 M solution of CaCl, and you add 100. mL to it. What is the new molarity?

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

Consider the reaction of a(g) + b(g) + c(g) => d(g) for which the following data were obtained: experiment initial [a], mol/l initial [b], mol/l initial [c], mol/l initial rate, mol/l.s 1 0.0500 0.0500 0.0100 6.25 x 10^-3 2 0.100 0.0500 0.0100 2.50 x 10^-2 3 0.100 0.100 0.0100 1.00 x 10^-1 4 0.0500 0.0500 0.0200 6.25 x 10^-3 what is the rate law for the reaction?

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume