Homework Help: Chemistry pls help

Posted by tricia on Wednesday, December 3, 2008 at 8:23pm.

I have a chemistry question
Please advise how do I prepare 1L of 75% H2SO4 from concentrated H2SO4 (98% of density 1.84g/ml)? Do you have an equation which i can use? Someone gave me the following equation but I do not understand it.

Vx1.84x0.98={(1000-V)+ 1.84V}0.75

where V= volume of conc H2S04 needed to prepare 1L of 75% H2SO4.

Thanks for your help.

Chemistry pls help - bobpursley, Wednesday, December 3, 2008 at 9:06pm
1000cc of .75 is 750 ml of pure h2so4
so

750=.98 Volume
volume acid= 750/.98=
765ml acid

so, put 235ml of water in a beaker, then slowly stir in the 765ml acid adding the acid in small quantities.

Wear gloves, rubber apron, and googles, and in a fume hood.

Answer this Question

Related Questions

Science, Chemistry - I have been told that to prepare 1L of 70% H2SO4 from ...
bio chemistry (please help) - prepare 1M 100 ml H2SO4. 98% H2SO4, density 1.84
chemistry - prepare 1M 100 ml H2SO4. 98% H2SO4, density 1.84
Science - How do I prepare 1% H2SO4 from concentrated sulphuric acid (96% with ...
Chemistry - Calculate the volume of concentrated reagent required to prepare the...
chemistry help! - I have a chemistry test tomorrow and I'm trying to study ...
CHEMISTRY - Whats the mass concentration of H2SO4 in a solution with percent ...
chemistry - Commercially available concentrated sulfuric acid is 18.0 M H2SO4. ...
ChemistryDrBob222 - Concentrated sulfuric acid is 18.4 molar and has a density ...
science - Concentrated sulfuric acid (18.4 molar H2SO4) has a density of 1.84 ...

For Further Reading

First Name:
School Subject:
Answer: