The concentration of a solution is equal to the mass of solute divided by the volume of solvent. Units of concentration are grams per 100 milliliters (g/100 mL, or g/dL). What is the concentration of this solution?

This is an incomplete question, here is a complete question.

The concentration of a solution is equal to the mass of solute divided by the volume of solvent. Units of concentration are grams per 100 milliliters (g/100 mL, or g/dL). What is the concentration of this solution, if 25 g of solute dissolved in 40 mL of water?

Answer : The concentration of solution is, 62.5 g/100 mL

Explanation : Given,

Mass of solute = 25 g

Volume of solvent (water) = 40 mL

Now we have to calculate the concentration of solution.

Now put all the given values in this expression, we get:

Thus, the concentration of solution is, 62.5 g/100 mL

the mass of the cathode increases because ions from the solution get reduced to atoms and become part of the cathode.

explanation:

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stan bts

a: 45.9 meters

b: 4.29 seconds

step-by-step explanation:

a: h(t)=1/2(-9.8)(3)^2+0(3)+90

h(t)=-4.9(3)^2+90

h(t)=-44.1+90

h(t)=45.9 meters

b: 0=1/2(-9.8)(t^2)+0t+90

0=-4.9t^2+90

-90=-4.9t^2

18.37=t^2

t=4.29 seconds

in the second question, the numbers aren't exact, but they're a close approximation.