The weak acid HA is 2% ionized (dissociated) in a 0.20 M solution. 1. What is Ka for this acid?
2. What is the pH of this solution?

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

Find the number of grams of hcl needed to react completely with .50 moles of magnesium.