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 plot showing the variation of volume with temperature at constant pressure is called __________
2 / 50
________ is an instrument that can be used to measure the strength of an acid or a base
3 / 50
Meter, kelvin, second and kilogram are examples of _______
4 / 50
In a gas. the molecules on the average are separated by large ______ distances
5 / 50
5. A mixture of iron filings and copper filings could best be separated by _________
6 / 50
Apparatus that arc basically used for determining the melting points of substances are called ____________
7 / 50
-______is a state of matter that does not have a definite shape nor volume
8 / 50
Modern approach to chemistry deals with equilibrium properties, ability to change and ______
9 / 50
International system of unit or system international can be written as an acronym _______________
10 / 50
Numerical value of the universal gas constant is ____ J/K/mol
11 / 50
11. 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?
12 / 50
12. A liquid will "wet" a surface if: ______
13 / 50
The gas law that explain the effusion of gas is ____________
14 / 50
For 1 mole of an ideal gas, a plot of PV against T will give a straight line whose slope is equal to __________
15 / 50
At low temperature and high pressure, gases tend to __________
16 / 50
The mathematical equation for Charles law can be written as ________
17 / 50
A homogenous materials that contain only one substance is called a ___________
18 / 50
The equation of ideal gas can be expressed as ______
19 / 50
The Beckman thermometer IS used in the Beckman's apparatus for determining __________ of a substance
20 / 50
The temperature, above which a substances can exist only in gaseous state is called _________
21 / 50
21. Which of the following statements is false?
22 / 50
22. Which one of the following statements most accurately relates the properties of a liquid at room temperature with its intermolecular forces?
23 / 50
23. Which of these alkanes is expected to have the highest viscosity?
24 / 50
The mathematical equation for Boyle's law can be written as ___________
25 / 50
The process of separating a pure substance from a solution is called _______
26 / 50
26. Which of the followings will not diffract X-rays?
27 / 50
At constant pressure, properties of gases that undergo changes are _______
28 / 50
The individual pressure of a gas in a mixture of gases is called ______
29 / 50
_________ of a gas is proportional to the mean kinetic energy of the molecules in a gas
30 / 50
30. 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.
31 / 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 __________
32 / 50
A skillful process of identifying. substituting and using correct apparatus appropriately in the laboratory is called _____
33 / 50
Physical Chemistry is concern with two major aspects, namely ability to change and _____
34 / 50
Temperature, length, time and mass are examples of ________
35 / 50
At constant temperature, the gas law that is most suitable is called _____ law
36 / 50
36. Which of the following is not a colligative property?
37 / 50
37. An atom on the face-centre of a unit cell is shared by _________ unit cells.
38 / 50
38. Distillation can be used to separate ________
39 / 50
Gas molecules confined to a container are in a state of ____________ motion
40 / 50
40. An ideal gas differs from a real gas in that the molecules of an ideal gas __________.
41 / 50
An expression for the combined gas law can be expressed as ________
42 / 50
Constituents in a solution can be separated by applying the principle of ___________
43 / 50
43. In fractional distillation, a mixture of liquids is separated based on their _______
44 / 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.
45 / 50
The rate at which gases diffuse is inversely proportional to the Square root of their ____________
46 / 50
A gas that obeys all the gas laws is called an ______
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
49. According to the kinetic theory of gases, a gas can be compressed much more than a liquid or solid because _________
50 / 50
50. Ethanol dissolved in water would be an example of ___________
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