Cation 1

Question 1

GROUP CATIONS:

Answer 1

• Silver (Ag^+) lons
• Lead (I|) (Pb2^+) lons - Plumbous
• Mercurous (H2^2) lons - polyatomic ion!

Question 2

INSOLUBLE CHLORIDES

Answer 2

Lead Chloride (PbCl2)
Silver Chloride (AgCI)
Mercurous Chloride (Hg2Cl2)

Question 3

FIRST STEP

Answer 3

The group is precipitated with dilute
HCI (Hydrochloric acid) as insoluble chlorides.

Question 4

SECOND STEP

Answer 4

Lead chloride is removed from the precipitate by leaching with hot water.

Question 5

THIRD STEP

Answer 5

The separation of AgCl from Hg2Cl2 with ammonia water.

Question 6

will tell us gaano ka soluble ang substance.

Answer 6

Solubility Product Constant K sp

Question 7

describes the equilibrium between a solid and its constituent ions in a solution.

Answer 7

Solubility Product Constant

Question 8

identifies the degree to which the compound can dissociate in water.

Answer 8

Ksp

Question 9

The _____ the Ksp, the more soluble the compound is.

Answer 9

higher

Question 10

White precipitate obtained in Procedure 1 may be

Answer 10

PbCl2
AgCl
Hg2Cl2

Question 11

First centrifugate may contain

Answer 11

Pb^2+

Question 12

Potassium Chromate

Answer 12

K2 CrO4

Question 13

K2 CrO4

Answer 13

Potassium Chromate

Question 14

Confirmatory reagent for lead (Pb^2+)

Answer 14

K2 CrO4

Question 15

Color confirming the presence of Pb2+

Answer 15

Yellow

Question 16

PROCEDURE 2B
Test for Residue/Precipitate may contain

Answer 16

AgCl
Hg2Cl2

Question 17

What is the separator reagent pf Silver chloride and Mercurous chloride

Answer 17

3M NH4OH

Ammonium water ( Ammonium hydroxide)

Question 18

blackening of the residue indicates the presence of the

Answer 18

MERCUROUS ION

Question 19

Centrifugate from 2B may contain

Answer 19

Ag(NH3)^2+
(Silver(I) diammine cation)

Question 20

Confirmatory reagent of Silver cations

Answer 20

3M HNO3
Nitric Acid

Question 21

confirms presence of SILVER ION.

Answer 21

Formation of a white precipitate

Question 22

Confirmatory reagent of Mercurous cation

Answer 22

Stannous Chloride - SnCl2

Question 23

confirms presence of MERCUROUS ION.

Answer 23

White or gray precipitate

Question 24

Group 1 cations are separated from other cations when precipitated with

Answer 24

dilute hydrochloric acid

Question 25

has high solubility in water.

Answer 25

Lead chloride

Question 26

Lead Chloride easily becomes soluble when dissolve in

Answer 26

hot water

Question 27

Centrifugate contains

Answer 27

plumbous ion

Question 28

Confirmation for Lead (II) ion: Precipitating agent:

Answer 28

Potassium chromate

Question 29

Chemical formula of yellow precipitate

Answer 29

PbCrO4

Question 30

Precipitate contains

Answer 30

silver and mercurous ion

Question 31

Separating agent: Silver and Mercurous

Answer 31

Dilute Ammonia

Question 32

True or False: Silver is soluble

Answer 32

True

Question 33

Confirmation for Silver ion: Precipitating agent:

Answer 33

Nitric Acid

Question 34

Chemical formula of white precipitate

Answer 34

AgCI

Question 35

Confirmation for Mercurous ion: Precipitating agent:

Answer 35

Stannous chloride

Question 36

Chemical formula of black precipitate

Answer 36

Hg