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3 years ago

HELP PLEASE 40.0 grams of salt are dissolved in 100. grams of water. The solution is how many grams?

Chemistry

1 answer:

garik1379 [7]3 years ago

5 0

Answer:

The mass of the solution is 140 grams.

Explanation:

The mass of the solution is given by the sum of the solute's mass and the solvent's mass:

$m_{sol} = m_{ste} + m_{svt}$

Where:

$m_{sol}$ : is the mass of the solution

$m_{ste}$ : is the mass of the solute

$m_{svt}$ : is the mass of the solvent

The solute is the salt (40.0 g) and the solvent is the water (100 g), so:

$m_{sol} = m_{ste} + m_{svt} = 40 g + 100 g = 140 g$

Therefore, the mass of the solution is 140 grams.

I hope it helps you!

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Read 2 more answers

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Answer:

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Step 1: Data given

Volume of the flask = 7.91 L

Total Pressure = 1.42 atm

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Moles CO2 = mass CO2 / Molar mass CO2

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Step 4: Calculate moles of Helium

Moles Helium = total moles of gas - moles of CO2

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