Chemistry Calculations

Question 1

Molarity

Answer 1

Amount of Substance(mol)/ Volume of the solution(L)

Question 2

Finding the Molarity from ml

Answer 2

grams of substance/ ml of substance) x (mol of substance/ molecular weight of substance) x (mol of substance/mol of entire substance) (1000ml/ 1l)

Question 3

To make the solution from

Answer 3

Amount of ml you want to make x (1l/1000ml) x (mol of substance/ 1L) x (molecular mass/1mol)

Question 4

From a stock solution

Answer 4

ml of solution x moles of substance / moles of stock solution

Question 5

Finding a Concentration in Titrations

Answer 5

Example is with acid just switch for base

ml of base x (1 L/ 1000Ml) x (mol of base/ 1L) x (mol of acid/ mol of base) = x then (x/ (1 L/ 1000 ml x ml of acid)