formula revision

Question 1

A formula used to calculate the concentration Of a solution in ppm is:

Answer 1

Mass of solute(in mg) over
mass of solution (in kg

Question 2

to calculate concentration

Answer 2

concentration
(g L^(−1) )=
(mass of solute (in g)) divide
(volume of solution (in L))

Question 3

calculate the number of moles of solute in a solution of given concentration and volume.

Answer 3

𝑛=𝑐×𝑉

Question 4

concentration, in mol L-1, of a solution can be calculated as follows:

Answer 4

𝑐=n/V

Question 5

calculate mass

Answer 5

𝑚= moles times molar mas