Question #9cb3f
1 Answer
See details below.
Explanation:
Whenever you are given a volume with a given concentration, when you take the product of these two quantities, you will get moles of that particular entity.
In each of the different scenarios, you are given moles of the solute. Then you are asked to find the new molarity (concentration) when
First step: Convert
Conversion factor used
#(given cancel "mL of solute")/(1)* (1*10^-3 L)/(cancel "mL") = "volume in Liters"#
Second step : Find moles
When you add water, you are essentially diluting the solution. If we look at what molarity is,
you can clearly see the relationship between volume and molarity. When you
To find the new molarity or concentration, first, add the volume of water,
Take the number of moles of HCl and divide by new volume to get new molarity.
Repeat this for every given problem.