BSAC General Chemistry I QUIZ 1 Name__________________ID__________

1

BSAC General Chemistry I
QUIZ 1 Name__________________ID_____
_____

Q1 50g of an unknown fluorocarbon gas at 75 ºC
and 180 Torr pressure was found to occupy 60.27 L
volume. Calculate the molar mass of the gas and
hence decide on its formula. What is the
unknown? A) C3F6 B) C2F4 C) CF4 D) C2F6 E)
C6F6
B

Q2 By referring to the solubility table
(attached), decide which of the following
solution mixings would NOT produce a
precipitate A) KOH(aq) Al(NO3)3 (aq)
? B) Ag2SO4 (aq) HF (aq) ? C) (NH4)2S
(aq) Ba(OH)2 (aq) ? D) CaCl2 (aq)
K2CO3 (aq) ? Q3 When 25 mL of HCl
(2.00 mol/L) is added to 30 mL AgNO3 (1.50 mol/L)
a white precipitate instantly formed. What was
the precipitate? Q4 What is the maximum
possible mass (theoretical yield) of precipitate
salt that is recoverable by filtration?
Q5 Glycine (H2N-CH2-COOH) (13.5 g) was
dissolved in 250 mL water (molal freezing point
depression constant 1.86 Kkg/mol). What was the
freezing point of the solution? Q6 In the
space below, write the full equation (including
all ions) for the mixing of lead (II) perchlorate
and iron(III) chloride _________________________
___________ _________________________
_____________ (4 2 2 4 4 4
marks) TOTAL 20 marks
C
A) HNO3 B) AgCl C) AgOH D) AgCl2 E)
Ag2(SO4)2
B
A) 8.93 g B) 8.04 g C) 7.17 g D) 4.56 g
E) 6.45 g
E
A) 0.72 ºC B) -0.72 ºC C) -1.34 ºC D) -1.68
ºC E) -0.33 ºC
C
3Pb(ClO4)2 2FeCl3 3PbCl2(s)
2Fe(ClO4)3
2

BSAC General Chemistry I
QUIZ 2 Name__________________ID_____
_____

Q1 30g of an unknown fluorocarbon gas at 65 ºC
and 270 Torr pressure was found to occupy 26.61 L
volume. Calculate the molar mass of the gas and
hence decide on its formula. What is the
unknown? A) C5F10 B) C2F2 C) CF4 D) C7F14 E)
C2F6
C

Q2 By referring to the solubility table
(attached), decide which of the following
solution mixings would NOT produce a
precipitate A) NaOH (aq) (NH4)2S (aq) ? B)
K2CO3 (aq) BaCl2 (aq) ? C) KOH(aq)
Cu(NO3)2 (aq) ? D) Ag2SO4 (aq) HBr (aq)
? Q3 When 25 mL of HCl (1.60 mol/L)
is added to 40 mL AgNO3 (1.40 mol/L) a white
precipitate instantly formed. What was the
precipitate? Q4 What is the maximum possible
mass (theoretical yield) of precipitate salt
that is recoverable by filtration? Q
5 Urea (H2N-CO-NH2) (13.5 g) was dissolved in
250 mL water (molal freezing point depression
constant 1.86 Kkg/mol). What was the freezing
point of the solution? Q6 In the space
below, write the full equation (including all
ions) for the mixing of ammonium phosphate and
copper (II) chloride ___________________________
_________ ___________________________
___________ (4 2 2 4 4 4
marks) TOTAL 20 marks
A
A) HNO3 B) AgCl2 C) AgOH D) AgCl E)
Ag2(SO4)2
D
A) 8.02 g B) 5.73 g C) 3.75 g D) 2.56 g
E) 11.45 g
B
A) -1.67 ºC B) -1.76 ºC C) -0.42 ºC D) -0.24
ºC E) 2.40 ºC
A
2(NH4)3PO4 3CuCl2 6NH4Cl
Cu3(PO4)2(s)
3

BSAC General Chemistry I
QUIZ 3 Name__________________ID______
____

Q1 86g of an unknown fluorocarbon gas at -25 ºC
and 980 Torr pressure was found to occupy 9.046 L
volume. Calculate the molar mass of the gas and
hence decide on its formula. What is the
unknown? A) C3F6 B) C2F6 C) C4F6 D) CF4 E)
C6F10
A

Q2 By referring to the solubility table
(attached), decide which of the following
solution mixings would NOT produce a
precipitate A) HI (aq) Ag3PO4 (aq) ? B)
LiClO3(aq) Sb(NO3)3 (aq) ? C) K2S (aq)
CuSO4 (aq) ? D) (NH4)2CO3 (aq) Sr(OH)2
(aq) ? Q3 When 60 mL of HCl (2.00
mol/L) is added to 50 mL AgNO3 (3.00 mol/L) a
white precipitate instantly formed. What was the
precipitate? Q4 What is the maximum possible
mass (theoretical yield) of precipitate salt
that is recoverable by filtration? Q
5 Glucose (C6H12O6) (3.5 g) was dissolved in 200
mL water (molal freezing point depression
constant 1.86 Kkg/mol). What was the freezing
point of the solution? Q6 In the space
below, write the full equation (including all
ions) for the mixing of caesium carbonate and tin
(II) chloride __________________________________
__ __________________________________
____ (4 2 2 4 4 4 marks) TOTAL 20
marks
B
A) Ag2(SO4)2 B) Ag2Cl C) AgCl D)
Ag2O E) HNO3
C
A) 17.2 g B) 21.5 g C) 11.7 g D) 24.6 g
E) 6.1 g
A
A) -0.04 ºC B) 0.12 ºC C) -1.12 ºC D) -0.81
ºC E) -0.18 ºC
E
Cs2(CO3)2 2SnCl2 2CsCl
2SnCO3 (s)
4

BSAC General Chemistry I
QUIZ 4 Name__________________ID_____
_____

Q1 250g of an unknown fluorocarbon vapour at
175 ºC and 50 Torr pressure was found to occupy
750.8 L volume. Calculate the molar mass of the
gas and hence decide on its formula. What is the
unknown? A) C2F4 B) CF4 C) C4F8 D) C6F12 E)
C6F6
E

Q2 By referring to the solubility table
(attached), decide which of the following
solution mixings would NOT produce a
precipitate A) Li2CO3 (aq) MgCl2 (aq) ? B)
AgClO3 (aq) HBr (aq) ? C) CsOH(aq)
Fe2(NO3)3 (aq) ? D) BaS (aq) CrBr2 (aq)
? Q3 When 105 mL of HCl (0.10
mol/L) is added to 125 mL AgNO3 (0.05 mol/L) a
white precipitate instantly formed. What was the
precipitate? Q4 What is the maximum possible
mass (theoretical yield) of precipitate salt
that is recoverable by filtration? Q
5 Sucrose (C12H22O11) (10.00 g) was dissolved in
150 mL water (molal freezing point depression
constant 1.86 Kkg/mol). What was the freezing
point of the solution? Q6 In the space
below, write the full equation (including all
ions) for the mixing of barium chloride and
iron(III) sulphate _____________________________
_______ _____________________________
_________ (4 2 2 4 4 4 marks) TOTAL
20 marks
C
A) HNO3 B) AgCl C) AgOH D) AgCl2 E)
Ag2(SO4)2
B
A) 0.06 g B) 0.90 g C) 1.10 g D) 1.50 g
E) 6.25 g
B
A) 0.10 ºC B) -0.36 ºC C) -0.10 ºC D) -0.02
ºC E) -1.33 ºC
B
Fe2(SO4)3 3BaCl2 2FeCl3(s)
3BaSO4(s)