Moles

Question 1

state the value of the Avogadro Constant

Answer 1

6.02 x 10^23

Question 2

state the equation for moles.

Answer 2

moles = mass / RAM

Question 3

state the equation for concentration.

Answer 3

concentration = amount of solute / volume of solution

Question 4

explain how you can increase the concentration of an aqueous solution.

Answer 4

• adding more solute and dissolving it in the same volume of its solution
• evaporating some of the water from the solution so that you have the same mass of solute in a smaller volume of solution