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3 years ago

Which unit can be used to express the concentration of a solution?

Chemistry

2 answers:

exis [7]3 years ago

6 0

Answer: (3) ppm

Explanation: Concentration is defined as the amount of solute dissolved in a known amount of the solvent or a solution.

Parts per million (ppm) is used to express the concentration when a very small quantity of solute is present in a large quantity of the solution. It is defined as the mass of solute present in one milion $(10^6)$ parts by mass of the solution.

$ppm=\frac{\text {mass of Solute}}{\text {Mass of solution}}\times 10^6$

L/s is used to express flow rate.

J/g is used to express energy per unit mass.

kPa is used to express pressure.

shutvik [7]3 years ago

5 0

Also to clarify further, L/s is a unit of flow rate, J/g is a unit of energy per unit mass, and kPa is a unit of pressure known as kilo pascals which is equivalent to 1000 pascals

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2 years ago

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2 years ago

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Andru [333]

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3 years ago

The graph given below shows the motion of four runners P, Q, R, and S in a 5 km marathon.

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Answer:-

As we can see from the graphical data,

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