To what volume would i need to add water to the evaporated solution in problem 3 to get a solution with a concentration of 0.25 m?

r just means there's a number of carbon in teh chain. for example rcooh means that after x number of carbon, the chain ends with cooh.

explanation:

the formula mass of a molecule or a compound is the sum of the atomic weights of the atoms in its empirical formula

(that's what i know about formula mass)

hypostyle hall;