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Category: CHM103

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CHM103

1 / 50

Which of the following is not a colligative property?

2 / 50

The equation of ideal gas can be expressed as ______


3 / 50

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.

4 / 50

-______is a state of matter that does not have a definite shape nor volume


5 / 50

The mathematical equation for Charles law can be written as ________

6 / 50

What is the average speed (actually the root-mean square speed) of a neon atom at 27 C?

7 / 50

Apparatus that arc basically used for determining the melting points of substances are called ____________


8 / 50

A gas that obeys all the gas laws is called an ______


9 / 50

Which of the followings will not diffract X-rays?

10 / 50

Numerical value of the universal gas constant is ____ J/K/mol


11 / 50

The mathematical equation for Boyle's law can be written as ___________

12 / 50

Temperature, length, time and mass are examples of ________


13 / 50

At high temperature and low pressure, gases tend to undergo phenomena that is called  ___________


14 / 50

Meter, kelvin, second and kilogram are  examples of _______


15 / 50

The temperature, above which a substances can exist only in gaseous state is called _________


16 / 50

Constituents in a solution can be separated by applying the principle of ___________


17 / 50

_________ of a gas is proportional to the mean kinetic energy of the molecules in a gas


18 / 50

 At constant temperature, the gas law that is most suitable is called _____ law

19 / 50

Ethanol dissolved in water would be an example of ___________

20 / 50

Which one of the following statements most accurately relates the properties of a liquid at room temperature with its intermolecular forces?

21 / 50

An atom on the face-centre of a unit cell is shared by _________ unit cells.

22 / 50

A liquid will "wet" a surface if: ______

23 / 50

Modern approach to chemistry deals with equilibrium properties, ability to change and ______

24 / 50

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?

25 / 50

In fractional distillation, a mixture of liquids is separated based on their _______

26 / 50

The volume occupied by 1 mole of oxygen gas at s.t.p. is ________ dm3


27 / 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.

28 / 50

An expression for the combined gas law can be expressed as ________


29 / 50

A mixture of iron filings and copper filings could best be separated by _________

30 / 50

At relatively low pressure, there are no ___________ forces between gas molecules

31 / 50

Which of these alkanes is expected to have the highest viscosity?

32 / 50

At constant pressure, properties of gases that undergo changes are _______


33 / 50

In a gas. the molecules on the average are separated by large ______ distances


34 / 50

Distillation can be used to separate ________

35 / 50

Which measurement describes the pressure of a gas?

36 / 50

The concentration of KBr in a solution prepared by dissolving 2.21 g of KBr in 897 g of water is __________ molal.

37 / 50

 A plot showing the variation of volume with temperature at constant pressure is called __________


38 / 50

 A homogenous materials that contain only one substance is called a ___________


39 / 50

A skillful process of identifying. substituting and using correct apparatus appropriately in the laboratory is called _____


40 / 50

________ is an instrument that can be used to measure the strength of an acid or a base

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

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 __________


43 / 50

An ideal gas differs from a real gas in that the molecules of an ideal gas __________.

44 / 50

The individual pressure of a gas in a mixture of gases is called ______

45 / 50

 The gas law that explain the effusion of gas is ____________


46 / 50

The Beckman thermometer IS used in the Beckman's apparatus for determining __________ of a substance

47 / 50

Which of the followings is not a characteristic of an ideal solution?

48 / 50

International system of unit or system international can be written as an acronym _______________


49 / 50

The process of separating a pure substance from a solution is called _______


50 / 50

According to the kinetic theory of gases, a gas can be compressed much more than a liquid or solid because _________

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