Moles in solutions

Question 1

What is a solution?

Answer 1

a solvent with a solute dissolved in it

Question 2

What is concentration?

Answer 2

tells us how much solute is present in a known volume of solution measures in mol dm^-3 1mol dm^-3 means there is 1 mole of solute per cubic decimetre of solution

Question 3

What is the equation for concentration?

Answer 3

number of molves, n / voume, V (dm^3)

Question 4

How do you work out the number of moles in a given volume of solution?

Answer 4

n = concentration (mol dm^-3) x volume V (dm^3) / 1000

Question 5

Error - state one hazard and precuation when using concentrated ethanoic acid?

Answer 5

hazard - it is corrsosive precaution - wear safety glasses/gloves