Does propoxyphene hcl expire?

hydrochloride, most commonly known as hydrochloric acid - a very strong acid with numbers on the lower end of the pH scale

Add 1M HCl solution to an equal quantity of water

Take specific volume of 3N solution and increase the volume three times by adding distilled water.

You must determine the concentration first of the concentrated HCl, typically concentrated HCl is a 36-38% HCL which works out to about 12-12.2 N concentration. From there all you have to due is...

You must take 88,8 mL concentrated HCL and fill up to 1000 mL with distilated water. (REMEMBER: ALWAYS ADD ACID TO WATER! - add 88.8mL to 900mL water and dilute to final volume = 1L) The simplest...