Chemistry Notes Form 4 Chemistry Form Four Pdf

heating Copper(II)Sulphate(VI)pentahydrate and cobalt(II)chloride Hexahydrate (i)Heat about 5.0g of Copper(II)Sulphate(VI) pentahydrate in a clean dry test tube until there is no further colour Change on a small Bunsen flame. Observe any changes on the side of the test/boiling tube. Allow the boiling tube to cool.Add about 10 drops of distilled

Reviewer For Chemical Engineering Comprehensive

9. What would be the effect on a BOD determination if the dilution water used contained either copper or chloride? a. BOD would be higher b. BOD would be lower c. DO level would increase d. DO level would decrease 10. Assertion (A) : The determination of pH value of sewerage is important.

Directory of Australian Makers Full List Hand Tool

Directory of Australian Tool Makers. This online database is based on the database compiled by HTPAA member Rod Thomas and published in 2001 as a printed directory by Rod (Directory of Australian Tool Manufacturers & Makers ©2006 Rod Thomas, ISBN 0 9579110 1 7).

Reviewer for Chemical Engineering Comprehensive

2021-2-26  9. What would be the effect on a BOD determination if the dilution water used contained either copper or chloride? a. BOD would be higher c. DO level would increase b. BOD would be lower d. DO level would decrease. 10. Assertion (A) : The determination of pH value of sewerage is important.