Kj are in 45.2 food cal

Aconcentrated solution of ammonia is 14.8m and has a density of 0.899g/l. what is the concentration of ammonia in this solution in weight percent (%w/w)?

Describe what happens to the molecules as water goes from ice to liquid to vapor. be sure to explain what happens to the temperature during the phase changes.

How many moles of potassium hydroxide are needed to completely react with 2.94 moles of aluminum sulfate