6092 Chapter 11 Qualitative Analysis in Chemistry

Front

Use of aqueous sodium hydroxide to identify cations

Back

Forms precipitates with cations except Na⁺, K⁺, and NH₄⁺.

Front

Use of aqueous ammonia to identify cations

Back

Forms precipitates with cations except Na⁺, K⁺, and NH₄⁺.

Front

Test for Copper(II) ion (Cu²⁺) with NaOH

Back

Blue precipitate formed, insoluble in excess NaOH.

Front

Test for Copper(II) ion (Cu²⁺) with NH₃ (aq)

Back

Blue precipitate formed, soluble in excess NH₃ to form a dark blue solution.

Front

Test for Iron(II) ion (Fe²⁺) with NaOH

Back

Green precipitate formed, insoluble in excess NaOH.

Front

Test for Iron(II) ion (Fe²⁺) with NH₃

Back

Dirty green precipitate formed, insoluble in excess NH₃.

Front

Test for Iron(III) ion (Fe³⁺) with NaOH

Back

Reddish brown precipitate formed, insoluble in excess NaOH.

Front

Test for Iron(III) ion (Fe³⁺) with NH₃

Back

Reddish brown precipitate formed, insoluble in excess NH₃.

Front

Test for Zinc ion (Zn²⁺) with NaOH

Back

White precipitate formed, soluble in excess NaOH to form a colourless solution.

Front

Test for Zinc ion (Zn²⁺) with NH₃

Back

White precipitate formed, soluble in excess NH₃ to form a colourless solution.