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
1 / 50
A skillful process of identifying. substituting and using correct apparatus appropriately in the laboratory is called _____
2 / 50
2. Which one of the following statements most accurately relates the properties of a liquid at room temperature with its intermolecular forces?
3 / 50
Physical Chemistry is concern with two major aspects, namely ability to change and _____
4 / 50
Meter, kelvin, second and kilogram are examples of _______
5 / 50
At constant pressure, properties of gases that undergo changes are _______
6 / 50
_________ of a gas is proportional to the mean kinetic energy of the molecules in a gas
7 / 50
7. Which of the following is not a colligative property?
8 / 50
8. Which measurement describes the pressure of a gas?
9 / 50
________ is an instrument that can be used to measure the strength of an acid or a base
10 / 50
10. According to the kinetic theory of gases, a gas can be compressed much more than a liquid or solid because _________
11 / 50
At relatively low pressure, there are no ___________ forces between gas molecules
12 / 50
The equation of ideal gas can be expressed as ______
13 / 50
Temperature, length, time and mass are examples of ________
14 / 50
An expression for the combined gas law can be expressed as ________
15 / 50
15. The concentration of KBr in a solution prepared by dissolving 2.21 g of KBr in 897 g of water is __________ molal.
16 / 50
16. 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.
17 / 50
A gas that obeys all the gas laws is called an ______
18 / 50
Modern approach to chemistry deals with equilibrium properties, ability to change and ______
19 / 50
The temperature, above which a substances can exist only in gaseous state is called _________
20 / 50
20. What is the average speed (actually the root-mean square speed) of a neon atom at 27 C?
21 / 50
Gas molecules confined to a container are in a state of ____________ motion
22 / 50
Numerical value of the universal gas constant is ____ J/K/mol
23 / 50
23. Which of the followings will not diffract X-rays?
24 / 50
At constant temperature, the gas law that is most suitable is called _____ law
25 / 50
The mathematical equation for Charles law can be written as ________
26 / 50
26. Ethanol dissolved in water would be an example of ___________
27 / 50
The volume occupied by 1 mole of oxygen gas at s.t.p. is ________ dm3
28 / 50
28. Distillation can be used to separate ________
29 / 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.
30 / 50
The Beckman thermometer IS used in the Beckman's apparatus for determining __________ of a substance
31 / 50
The individual pressure of a gas in a mixture of gases is called ______
32 / 50
Constituents in a solution can be separated by applying the principle of ___________
33 / 50
33. Which of the following statements is false?
34 / 50
International system of unit or system international can be written as an acronym _______________
35 / 50
35. A liquid will "wet" a surface if: ______
36 / 50
A homogenous materials that contain only one substance is called a ___________
37 / 50
A plot showing the variation of volume with temperature at constant pressure is called __________
38 / 50
38. An ideal gas differs from a real gas in that the molecules of an ideal gas __________.
39 / 50
39. In fractional distillation, a mixture of liquids is separated based on their _______
40 / 50
The mathematical equation for Boyle's law can be written as ___________
41 / 50
For 1 mole of an ideal gas, a plot of PV against T will give a straight line whose slope is equal to __________
42 / 50
Apparatus that arc basically used for determining the melting points of substances are called ____________
43 / 50
At low temperature and high pressure, gases tend to __________
44 / 50
-______is a state of matter that does not have a definite shape nor volume
45 / 50
45. Which of these alkanes is expected to have the highest viscosity?
46 / 50
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 __________
47 / 50
47. Which of the followings is not a characteristic of an ideal solution?
48 / 50
48. 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.
49 / 50
At high temperature and low pressure, gases tend to undergo phenomena that is called ___________
50 / 50
50. A mixture of iron filings and copper filings could best be separated by _________
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