Back to marketplace

3.1.4 Qualitative Analysis

No description yet. This curated deck is ready for daily study.

Total cards: 5•Content version: v4•Public deck•Updated: 8/1/2026

Card preview (5)

#1
Front (Question)

describe the test for carbonates and give an example equation

Back (Answer)

• add dilute acid • observe effervescence • 2HCl (aq) + Na2CO3(aq) —> 2NaCl + H2O + CO2

#2
Front (Question)

describe the test for sulphates and give an example equation

Back (Answer)

• add BaCl2 solution as a reagent • white precipitate forms Ba+2(aq) + SO4-2(aq) —> BaSO4(s)

#3
Front (Question)

why is an acid needed in the test for sulphate ions and why would sulphuric acid not be used

Back (Answer)

the acid is needed to react with carbonate impurities that would form a ppt and give a false result sulphuric acid would also form a ppt and give a false result

#4
Front (Question)

describe the test for halides and give an example equation

Back (Answer)

• add dilute HNO3 and AgNO3 • AgCl and AgBr dissolve but AgI does not react AgCl/Br(s) + 2NH3(aq) —> [Ag(NH3)2]+(aq) + Cl/Br-(aq)

#5
Front (Question)

describe the test for ammonium

Back (Answer)

• add NaOH(aq) and heat * NH4(g) would form which turns litmus paper from red to blue