# Calculating pH

Chemistry Level 2

Ιn $$200ml$$ aqueous solution $$(S1)$$ of ethane acid ($$\ce{CH3-COOH}$$) concentration $$C1=0,25M$$,dissolve 0,6g metallic $$\ce{Mg}$$ without change of volume ,resulting solution $$S2$$.

• From the solution $$S2$$ remove 100ml and then diluted with water to a final volume of $$250ml$$ find the $$pH$$ of this solution $$S3$$

Use to the problem :

• $$\ce{CH3-COOH}$$ : $$\ce{ Ka}=10^{-5}$$

• $$\ce{H2O}$$:$$\ce{ Kw}=10^{-14}$$

• $$\ce{Mg}$$: $$Ar=24$$

• $$0,1-X=0,1$$ if $$x$$ is very small.

×

Problem Loading...

Note Loading...

Set Loading...