# Help me on mixture problem T_T

• September 2nd 2006, 05:35 AM
Help me on mixture problem T_T
A chemical engineer mixed 40ml of 80% HCl solution w/ 60ml of 12% HCL solution. He used a portion of the resulting mixtures & replace it with distilled water / H2O. If the new solution is 5.2% HCl, Howmuch of the original mixture did he used?
• September 2nd 2006, 06:15 AM
topsquark
Quote:

A chemical engineer mixed 40ml of 80% HCl solution w/ 60ml of 12% HCL solution. He used a portion of the resulting mixtures & replace it with distilled water / H2O. If the new solution is 5.2% HCl, Howmuch of the original mixture did he used?

The new solution is 5.2% HCl before or after the distilled water was added? If it is after we need to know how much distilled water was used.

-Dan
• September 3rd 2006, 03:27 AM
Random333
Quote:

$\frac{34}{39.2} \times 100$