1.) I have 345 mL of a 1.5 M NaCl solution. If I boil the water until the volume of the solution is 250 mL, what will be

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1.)
I have 345 mL of a 1.5 M NaCl solution. If I boil the water
until the volume of the solution is 250 mL, what will be the
concentration of the solution?
Round your answer to three significant
digits.
2.)
If you add water to 100 mL of a 0.150M NaOH solution until the
final volume is 150 mL, what will be the concentration of the
solution be?
Round your answer to three significant
digits.
3.)
How much 0.05 HCl solution can be made by diluting 250 mL of 10M
HCl?
Round your answer to three significant
digits.
4.)
How much water would i need to add to 500 mL of 2.40 M KCl
solution to make a 1.00 M solution
Round your answer to three significant
digits.
5.)
If you add 25 mL of water to 125 mL of 0.15mol/L NaOH solution,
what will be the concentration of the diluted solution
Round your answer to three significant
digits.