SOLUTION: A chemist has a 50 mL beaker of a 10% solution solution. Write an equation for the concentration of the solution after adding x mL of pure water. Concentration = __________

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: A chemist has a 50 mL beaker of a 10% solution solution. Write an equation for the concentration of the solution after adding x mL of pure water. Concentration = __________      Log On


   

Question 932034: A chemist has a 50 mL beaker of a 10% solution solution. Write an equation for the concentration of the solution after adding x mL of pure water.
Concentration = __________
Answer by josgarithmetic(39618) About Me  (Show Source):
You can put this solution on YOUR website!
This is what happens to the amount of alcohol:
50%2AmL%2A%280.10%29%2Bx%2Aml%2A%280%29

This is what happens to the volume of the resulting mixture:
5%2AmL%2Bx%2AmL

Use those results to form the expression for the concentration.

%285%2B0%29%2F%285%2Bx%29=highlight%285%2F%28x%2B5%29%29, which would be a proper fraction OR a decimal number between 0 and 1. To get as percent, multiply by 100.