How do you calculate dilutions?

Answer 1

H!

Refer below to the formula of dilution:

C1V1 = C2V2

Sample problem:

How much water and how much 12 M HCl must be used to prepare 500 ml of a 1 M HCl solution? # Determine the volume of 12 M to be used using the dilution formula (12) (volume of 12 M) = (1) (500) volume of 12 M = (1) (500) / 12 = 41.7 ml 12 M # Determine the volume of water to add to it Total volume after dilution = volume of 12 M + volume of water added 500 = 41.7 + volume of water added 500 - 41.7 = volume of water = 458.3 ml of water to be added to the 41.7 ml of 12 M

Regards,

Dianne

Answer 2

C1V1 = C2V2

Sample problem:

How much water and how much 12 M HCl must be used to prepare 500 ml of a 1 M HCl solution?

1. Determine the volume of 12 M to be used using the dilution formula

(12) (volume of 12 M) = (1) (500) volume of 12 M = (1) (500) / 12 = 41.7 ml 12 M

1. Determine the volume of water to add to it

Total volume after dilution = volume of 12 M + volume of water added 500 = 41.7 + volume of water added 500 - 41.7 = volume of water = 458.3 ml of water to be added to the 41.7 ml of 12 M

Answer 3

A dilution ratio is a shorthand method to represent a dilution performed using integer ratios of solvent. For example let's say you have 100mL of an aqueous 1M solution. Transfer 25mL of this solution to a 100mL volumetric flask, and dilute with water to the 100mL mark. This solution is now 0.25M, a 1:4 dilution. I have seen this mistakenly reported as a 1:3 dilution, adding the two integers together to get the new solution volume. Important to note is that the second value in the dilution ratio representation (the 'four' in the 'one to four') is the TOTAL amount of solvent, not the added amount, which would be 3.

Answer 4

to find the concentration of a substance the formula is:

c= n /v ( concentration equals moles over volume

Answer 5

Use V1*c1 = V2*c2 with similar units on each side.

Answer 6

For example mass of a solute in a known volume or mass of a solvent (concentration).

Answer 7

A solution is a mixture and hasn't a chemical formula.

Answer 8

Dilution hasn't a chemical equation.

Answer 9

Concentration is the mass of a component/volume (or total weight) ratio.