Experiment 16 involves determining the identity of 6 unknown household products.
ID: 1005673 • Letter: E
Question
Experiment 16 involves determining the identity of 6 unknown household products.
Available tests:
1: Solubility in water
2: pH
3: AgNO3 (aq)
4: PbNO3 (aq)
5: BaCl2 (aq)
6: 1M HCl (aq)
7: 1M NaOH (aq)
8: Iodine
9: Acetic acid (aq)
10: Flame test
Complete the required portions of the table in blue, and any number of additional experiments in yellow, by selecting the corresponding active ingredient for the following household products from set C and match the corresponding result for each selected test.
Before coming to lab: Download and print table. Fill in with the experiments you will be performing and expected results for that test.
Click here to download your Set C Household Product Sheet
Some references include your lab manual, solubility rules from table 9.1, Merck Index or CRC Handbook (available in the Resource Centre).
1.The list of Active ingredient of above 6 compound:
KCl
sucrose
KNO3
ascorbic acid
CaCO3
NaCl
glucose
NaHCO3
Acetyl salicylic acid
MgSO4
Na2B4O9.H2O
NaOH
Cornstarch
2.The option of Solubility in water:
souble
insouble
3.The option of PH
pH=3 to 6; acidic
pH=7; neutral
pH=8 to 11; basic
pH>11; basic
4.The options of Yellow cube:
white ppt
no ppt
Solubility in water 1M HCI (aq) AgNO3 (aq) pbNO3 (aq) BaCI2 (aq) 1M NaOH (aq) Compound Rolaids Cornstarch Borax Salt Vitamin C Sugar Active ingredient pH Iodine Tries 4/99 . Tries 1/3 t Tries 1/3 Tries 0/3 Tries 1/3 Tries 0/3 Tries 0/99 . Tries 0/99E ! Tries 0/99 Tries 0 99D Tries 0/99 Tries O/99L Tries 4/99 Tries 0/99 |Tries O/991 Tries 0/99 Tries 0/99 : st stExplanation / Answer
Compound
Active Ingredient
Solubility in water
pH
AgNO3 (aq)
PbNO3 (aq)
BaCl2 (aq)
1 (M) HCl (aq)
1 M NaOH (aq)
Iodine
Rolaids
CaCO3
Insoluble
8-11; basic
White ppt
White ppt
White ppt
No ppt
White ppt
No ppt
Cornstarch
Cornstarch
Insoluble
3-6; acidic
No ppt
No ppt
No ppt
No ppt
No ppt
Blue-black colour
Borax
Na2B4O9.H2O
Soluble
8-11; basic
No ppt
White ppt
White ppt
No ppt
No ppt
No ppt
Salt
NaCl
Soluble
7; neutral
White ppt
White ppt
No ppt
No ppt
No ppt
No ppt
Vitamin C
Ascorbic acid
Soluble
3-6; acidic
No ppt
No ppt
No ppt
No ppt
No ppt
No ppt
Sugar
Glucose
Soluble
7; neutral
Grey ppt
No ppt
No ppt
No ppt
No ppt
No ppt
Compound
Active Ingredient
Solubility in water
pH
AgNO3 (aq)
PbNO3 (aq)
BaCl2 (aq)
1 (M) HCl (aq)
1 M NaOH (aq)
Iodine
Rolaids
CaCO3
Insoluble
8-11; basic
White ppt
White ppt
White ppt
No ppt
White ppt
No ppt
Cornstarch
Cornstarch
Insoluble
3-6; acidic
No ppt
No ppt
No ppt
No ppt
No ppt
Blue-black colour
Borax
Na2B4O9.H2O
Soluble
8-11; basic
No ppt
White ppt
White ppt
No ppt
No ppt
No ppt
Salt
NaCl
Soluble
7; neutral
White ppt
White ppt
No ppt
No ppt
No ppt
No ppt
Vitamin C
Ascorbic acid
Soluble
3-6; acidic
No ppt
No ppt
No ppt
No ppt
No ppt
No ppt
Sugar
Glucose
Soluble
7; neutral
Grey ppt
No ppt
No ppt
No ppt
No ppt
No ppt
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