Wednesday
July 30, 2014

Homework Help: chem

Posted by t on Monday, September 17, 2007 at 5:52pm.

how would you make a 4% percent paraformaldehyde solution?


Work:
starting from 20% (diluted with PBS)
V1C1=V2C2
(100)(20)=(x)(4)
x=500
so add
496 ml of PBS (accounting for 4% paraformaldehyde) or would you add 500ml of PBS

Thank you

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

chem please help - how would you make a 4% percent paraformaldehyde solution? ...
chemistry - how would you make a 4% percent paraformaldehyde solution? Work: ...
chemistry - Too make a 4% solution of paraformaldehyde from a 20 % solution. ...
chemistry - the molar solubility of PbS, in a 0.150 M ammonium sulfide (NH4)2S ...
Dilution - Please, if possible, check if my method of dilution is correct ...
chemistry - Which of the species KClO2, NH4Br, HNO2, PbS is/are insoluble in ...
chemistry - At temperatures above 930 ∘C, PbO reduces PbS to form ...
chemistry - At temperatures above 930 ∘C, PbO reduces PbS to form ...
chemistry - At temperatures above 930 ∘C, PbO reduces PbS to form metallic...
Chemistry - HELP!!! At temperatures above 930 ∘C, PbO reduces PbS to form...

Search
Members