Homework Help: chemistry HELP

Posted by TARA on Thursday, December 9, 2010 at 8:46pm.

laboratoories order hydrochloric acid as a concentrated solution (e.g. 36% W/V). what initial volume of concentrated laboratory hydrochloric acid should be diluted to prepare 5.00L of a 0.12 mol/L solution for an experiment?
plz can someone show me how to do it step by step ....i have a test tomrrow and i don't get this question.....the answer is 61 mL ( i look it up im my text book) thank u :)

chemistry HELP - DrBob222, Thursday, December 9, 2010 at 9:35pm
Personally, I don't believe HCl is sold as percent by volume. But in the spirit of the question,
1000 mL x 0.36 = 360 g HCl
moles HCl = 360/36.44 = 9.879 M
Then L x M = L x M
L x 9.879 = 5.00 x 0.12
L = 0.0607 L = 61 mL to 2 significant figures.

Answer this Question

Related Questions

Chemistry - Which of the following is an example of a physical change ? A) Zinc ...
Chemistry - Concentrated hydrochloric acid has a concentration of 12.1 moles per...
chemistry - Please help. Concentrated hydrochloric acid is a 38% w/w solution of...
science - Please help. Concentrated hydrochloric acid is a 38% w/w solution of ...
Pharmacy math - concentrated hydrochloric acid is a 38% solution of hcl in water...
Chemistry - If you had one gallon of concentrated hydrochloric acid (12 N) and ...
chemistry - Concentrated hydrochloric acid is 38% , by mass, HCl in water. How ...
chemistry-0.1NHCl - Hi, A bottle of concentrated Hydrochloric acid (HCl) has the...
Chemistry - A solution is prepared by adding 47.3 mL of concentrated ...
Chemistry - A solution is prepared by adding 50.3 mL of concentrated ...

For Further Reading

First Name:
School Subject:
Answer: