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Step2247 [10]
3 years ago
12

Pls answer I am giving lots of points and need all the work shown. Determine the kb for chloroform when 0.793 moles of solute in

0.758 kg changes the boiling point by 3.80 °C.
Chemistry
1 answer:
navik [9.2K]3 years ago
8 0

Answer:0.87

Explanation:

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Which of the following compounds are polar: CH2Cl2, HBr?
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3 years ago
Calculate the mass fraction of sodium chloride in the solution if 20 g of it is dissolved in 300 ml of water.
MA_775_DIABLO [31]

The mass fraction of sodium chloride is 0.0625

<h3>What is the mass fraction of sodium chloride in the solution?</h3>

The mass fraction of sodium chloride is the ratio of the mass of sodium chloride to the total mass of the solution.

The mass fraction of sodium chloride is determined as follows;

mass of sodium chloride = 20 g

  • mass of water = volume * density

density of water = 1 g/mL

volume of water = 300 mL

mass of water = 300 mL * 1 g/mL

mass of water = 300 g

total mass of solution = 20 + 300 = 320 g

mass fraction of sodium chloride = 20/320

mass fraction of sodium chloride = 0.0625

Learn more about mass fraction at: brainly.com/question/14783710

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