Answer:
1.5 ounces of chlorine is needed.
Step-by-step explanation:
Ratio of the solution = 1 part chlorine: 10 parts water
let the volume of chlorine required to make the solution be x
Volume of the water used on solution = 15 ounces
Ratio of chlorine to water will remain equal to the 1 part chlorine to 10 parts water:

1.5 ounces of chlorine is needed.