ATTENTION:
Kindly note that you will be presented with 50 questions randomized from the NOUN question bank. Make sure to take the quiz multiple times so you can get familiar with the questions and answers, as new questions are randomized in each attempt.
Good luck!
CHM103
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1. What is the average speed (actually the root-mean square speed) of a neon atom at 27 C?
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2. An ideal gas differs from a real gas in that the molecules of an ideal gas __________.
3 / 50
International system of unit or system international can be written as an acronym _______________
4 / 50
The Beckman thermometer IS used in the Beckman's apparatus for determining __________ of a substance
5 / 50
For 1 mole of an ideal gas, a plot of PV against T will give a straight line whose slope is equal to __________
6 / 50
At constant temperature, the gas law that is most suitable is called _____ law
7 / 50
7. A mixture of iron filings and copper filings could best be separated by _________
8 / 50
8. According to the kinetic theory of gases, a gas can be compressed much more than a liquid or solid because _________
9 / 50
A skillful process of identifying. substituting and using correct apparatus appropriately in the laboratory is called _____
10 / 50
The equation of ideal gas can be expressed as ______
11 / 50
At high temperature and low pressure, gases tend to undergo phenomena that is called ___________
12 / 50
The temperature, above which a substances can exist only in gaseous state is called _________
13 / 50
13. Which of these alkanes is expected to have the highest viscosity?
14 / 50
A solution is prepared by dissolving calcium chloride in water and diluting to 500.0 mL. If this solution contains 44 ppm chloride ions, the concentration of calcium ions is __________ ppm.
15 / 50
15. Which one of the following statements most accurately relates the properties of a liquid at room temperature with its intermolecular forces?
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16. An atom on the face-centre of a unit cell is shared by _________ unit cells.
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17. A liquid will "wet" a surface if: ______
18 / 50
At relatively low pressure, there are no ___________ forces between gas molecules
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-______is a state of matter that does not have a definite shape nor volume
20 / 50
A homogenous materials that contain only one substance is called a ___________
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The gas law that consider the total pressure of a gas as a function of the pressures exerted by the individual gases that make up the mixture is __________
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________ is an instrument that can be used to measure the strength of an acid or a base
23 / 50
A gas that obeys all the gas laws is called an ______
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24. Which of the followings is not a characteristic of an ideal solution?
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25. In fractional distillation, a mixture of liquids is separated based on their _______
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A plot showing the variation of volume with temperature at constant pressure is called __________
27 / 50
The process of separating a pure substance from a solution is called _______
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28. A sample of oxygen occupies 47.2 liters under a pressure of 1240 torr at 25 $^{o}C$. What volume would it occupy at 25$^{o}C$ if the pressure were decreased to 730 torr?
29 / 50
Apparatus that arc basically used for determining the melting points of substances are called ____________
30 / 50
The mathematical equation for Boyle's law can be written as ___________
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31. Distillation can be used to separate ________
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Gas molecules confined to a container are in a state of ____________ motion
33 / 50
In a gas. the molecules on the average are separated by large ______ distances
34 / 50
Temperature, length, time and mass are examples of ________
35 / 50
35. Which of the following statements is false?
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36. Which of the following is not a colligative property?
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37. The Henry's law constant for helium gas in water at 30 °C is 0.00037 M/atm. When the partial pressure of helium above a sample of water is 0.650 atm, the concentration of helium in the water is __________ M.
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38. The vapor pressure of pure ethanol at 60 °C is 0.459 atm. Raoult's Law predicts that a solution prepared by dissolving 10.0 mmol naphthalene (nonvolatile) in 90.0 mmol ethanol will have a vapour pressure of __________ atm.
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39. Which measurement describes the pressure of a gas?
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At low temperature and high pressure, gases tend to __________
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41. Ethanol dissolved in water would be an example of ___________
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Physical Chemistry is concern with two major aspects, namely ability to change and _____
43 / 50
The individual pressure of a gas in a mixture of gases is called ______
44 / 50
The rate at which gases diffuse is inversely proportional to the Square root of their ____________
45 / 50
At constant pressure, properties of gases that undergo changes are _______
46 / 50
An expression for the combined gas law can be expressed as ________
47 / 50
_________ of a gas is proportional to the mean kinetic energy of the molecules in a gas
48 / 50
Numerical value of the universal gas constant is ____ J/K/mol
49 / 50
The mathematical equation for Charles law can be written as ________
50 / 50
50. Which of the followings will not diffract X-rays?
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