Home > Chemistry > Measuring Concentration

What is the concentration of a solution, expressed in g/100 mL, if 25 g of solute dissolved in 40 mL of water?

Answer 1

Owen Ambrose

#"Solubility"-=62.5*g*100*mL^-1#.............

We want #"Concentration"="Mass of solute"/"100 mL volume of solvent"#.

We make the reasonable assumption that the volume of solution is equal to #40*mL#.

Thus, we establish the quotient.

#(25*g)/((40/100)*mL)=62.5*g*(100*mL)^-1#..........

By signing up, you agree to our Terms of Service and Privacy Policy

Answer 2

Caleb Adams

The concentration of the solution is 62.5 g/100 mL.

By signing up, you agree to our Terms of Service and Privacy Policy

Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.