lOMoARcPSD|59658805
Amount of substance - Multiple choice questions answers
Biological science (University of Oxford)
Scan to open on Studocu
Studocu is not sponsored or endorsed by any college or university
Downloaded by olinder seth ()
, lOMoARcPSD|59658805
The Chauncy School
Exampro A-level Name:
Chemistry (7404/7405) Class:
Amount of substance
Multiple choice questions
Author: Mrs Harris
Date:
Time: 32
Marks: 32
Comments
:
Page 1
Downloaded by olinder seth ()
, lOMoARcPSD|59658805
The Chauncy School
Q1.Silver oxide, Ag2O, can be reduced by passing hydrogen gas over the heated oxide. The
maximum mass of silver that could be obtained from 2.32 g of silver oxide is
A 2.02 g
B 2.06 g
C 2.12 g
D 2.16 g
(Total 1 mark)
Q2.A sample of 2.18 g of oxygen gas has a volume of 1870 cm at a pressure of 101 kPa.
3
What is the temperature of the gas?
The gas constant is R = 8.31 J K mol .
–1 –1
A 167 K
B 334 K
C 668 K
D 334 000 K
(Total 1 mark)
Q3.A brand of fluoride tablets, recommended by a dentist to strengthen the enamel on teeth,
contains 2.2 × 10−3 sodium fluoride per tablet. The total mass of fluoride ion present in 100
tablets is
A 2.2 × 10−3 × × 100
B 2.2 × 10−3 × × 100
C 2.2 × 10−3 × × 100
D
Page 2
Downloaded by olinder seth ()
Amount of substance - Multiple choice questions answers
Biological science (University of Oxford)
Scan to open on Studocu
Studocu is not sponsored or endorsed by any college or university
Downloaded by olinder seth ()
, lOMoARcPSD|59658805
The Chauncy School
Exampro A-level Name:
Chemistry (7404/7405) Class:
Amount of substance
Multiple choice questions
Author: Mrs Harris
Date:
Time: 32
Marks: 32
Comments
:
Page 1
Downloaded by olinder seth ()
, lOMoARcPSD|59658805
The Chauncy School
Q1.Silver oxide, Ag2O, can be reduced by passing hydrogen gas over the heated oxide. The
maximum mass of silver that could be obtained from 2.32 g of silver oxide is
A 2.02 g
B 2.06 g
C 2.12 g
D 2.16 g
(Total 1 mark)
Q2.A sample of 2.18 g of oxygen gas has a volume of 1870 cm at a pressure of 101 kPa.
3
What is the temperature of the gas?
The gas constant is R = 8.31 J K mol .
–1 –1
A 167 K
B 334 K
C 668 K
D 334 000 K
(Total 1 mark)
Q3.A brand of fluoride tablets, recommended by a dentist to strengthen the enamel on teeth,
contains 2.2 × 10−3 sodium fluoride per tablet. The total mass of fluoride ion present in 100
tablets is
A 2.2 × 10−3 × × 100
B 2.2 × 10−3 × × 100
C 2.2 × 10−3 × × 100
D
Page 2
Downloaded by olinder seth ()
