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luda_lava [24]
3 years ago
7

Calculate molality of a 2m aq solution of sodium chloride with density 1.35g/mol

Chemistry
1 answer:
swat323 years ago
5 0
There are a number of ways to express concentration of a solution. This includes molarity and molality. Molarity is expressed as the number of moles of solute per volume of the solution while molality is expressed as the number of moles solute per mass of solution. Calculation is as follows:

(2 mol NaCl / L solution) ( 1 cm^3 / 1.35 g) ( 1000 L / 1 cm^3) (1000 g /kg) = 1.5 x 10^6 mol / kg solution
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Arada [10]

<u>Answer:</u> The pressure of carbon dioxide gas is 11 atm

<u>Explanation:</u>

To calculate the pressure of gas, we use the equation given by ideal gas equation:

PV = nRT

where,

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V = Volume of gas = 25 L

n = number of moles of gas = 10 mole

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T = temperature of the gas = 325 K

Putting values in above equation, we get:

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the answer is below

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Read 2 more answers
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