A buffer solution is prepared by dissolving 0.100 moles of methylamine (CH3NH2) and 0.06 moles of methylammonium chloride (CH3NH3Cl) in 0.250
L of solution. Calculate the pH of this solution after 0.200 moles of HCl has
been added. Kb = 4.38 x 10-4 for methylamine.

1. calculate the approximate enthalpy of the reaction in joules. estimate that 1.0 ml of vinegar has the same thermal mass as 1.0 ml of water. iqnore the thermal mass of th sodium bicarbonate. note: it takes about 4.2 joules () to change 1.0 gram (1.0ml) of water 1.0 c

What does the cell nucleus do or, how does it function?

What is a main difference between a mixture and a pure substance? a mixture is only a liquid, but a pure substance can be in any state.a mixture looks the same throughout, but a pure substance does not.1 a mixture can vary in composition, but a pure substance has a set composlo a mixture can be made up of a single compound, but a pure substance car