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Mumz [18]
3 years ago
7

Two students are given different samples of a substance and are instructed to determine the properties of the substance. Which s

tatement describes a property that will be the same for both students?
-color because it is an extensive property
-mass because it is an extensive property
-boiling point because it is an intensive property
-volume because it is an intensive property
Chemistry
2 answers:
olga_2 [115]3 years ago
8 0
Mass because it is an extensive property
Art [367]3 years ago
5 0

Answer : The correct option, mass because it is an extensive property.

Explanation :

Extensive property : It is a type of property that depends on the amount of the substance. For example : mass and volume.

Intensive property : It is a type of property that don not depends on the amount of the substance. For example : density, boiling point, pressure and color.

Hence, from the given statements the correct statement is, the mass because it is an extensive property.

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The question is incomplete, here is the complete question:

Calculate the pH at of a 0.10 M solution of anilinium chloride (C_6H_5NH_3Cl) . Note that aniline (C6H5NH2) is a weak base with a pK_b of 4.87. Round your answer to 1 decimal place.

<u>Answer:</u> The pH of the solution is 5.1

<u>Explanation:</u>

Anilinium chloride is the salt formed by the combination of a weak base (aniline) and a strong acid (HCl).

To calculate the pH of the solution, we use the equation:

pH=7-\frac{1}{2}[pK_b+\log C]

where,

pK_b = negative logarithm of weak base which is aniline = 4.87

C = concentration of the salt = 0.10 M

Putting values in above equation, we get:

pH=7-\frac{1}{2}[4.87+\log (0.10)]\\\\pH=5.06=5.1

Hence, the pH of the solution is 5.1

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