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ENGG 201 Prelab QUIZ
Behaviour of Liquids, Gases and Solids (ENGG 201)
University of Calgary
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Question 1 (1 point)
Question 2 (1 point)
Which one of the following is/are not allowed in the lab?
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What force(s) does a solid submerged in a fluid experience?
A) Safety glasses
B) Lab coat
C) Closed-toed shoes
D) Food
E) Personal Electronic
Devices
Question 3 (1 point)
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When an object hung from a balance is submerged in water, the net downward force will __________ and the mass of the object will appear to be ___________ in air
A) Downward force due
to gravity
B) Downward force due
to tension
C) Upward force due to
friction
D) Upward force due to
buoyancy
E) (A) and (B)
F) (C) and (D)
G) (A) and (D)
H) All of the above
Question 6 (1 point)
Question 7 (1 point)
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Your Answer:
Answer
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Using the ideal gas law, determine the ratio of the densities of two different gases as a function of their elution time, t.
It is known that the ratio
remains constant for all gases in a Schilling Apparatus.
At your experimental conditions, the relative density of water is 0. Determine the volume of the pycnometer if the mass of the empty pycnometer is 22 g and the mass of the pycnometer filled with water is 74 g. Give your answer in units of cm 3 to one decimal place.
t {"version":"1","math":"<math xmlns="w3/1998/Math/MathML"><mfrac><msup><mi>t</mi><mn>2</mn></msup><mi>M</mi></mfrac></math>"}
2
M
Question 8 (1 point)
Question 9 (1 point)
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Your Answer:
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= {"version":"1","math":"<math xmlns="w3/1998/Math/MathML"><mfrac><msub><mi>&#x3C1;</m
ρ 1
ρ 2
t 1
t 2
= {"version":"1","math":"<math xmlns="w3/1998/Math/MathML"><mfrac><msub><mi>&#x3C1;<
ρ 1
ρ 2
(t 1 ) 2
(t 2 ) 2
= {"version":"1","math":"<math xmlns="w3/1998/Math/MathML"><mfrac><msub><mi>&#x3C1;</m
ρ 1
ρ 2
t 2
t 1
= {"version":"1","math":"<math xmlns="w3/1998/Math/MathML"><mfrac><msub><mi>&#x3C1;<
ρ 1
ρ 2
(t 2 ) 2
(t 1 ) 2
What is the ratio of the density of air to the density of nitrogen given that the efflux time of nitrogen is 127 s and the efflux time of air is the value obtained in the experiment 1 video on D2L? Use the equation that you solved for in the previous question. Provide your answer to 3 decimal places.
You are given a solution containing 59 g of NaCl and 16 g of H 2 O. The molar mass of
ENGG 201 Prelab QUIZ
Course: Behaviour of Liquids, Gases and Solids (ENGG 201)
University: University of Calgary
