gthif4025 gthif4025
  • 03-03-2020
  • Chemistry
contestada

How many moles of solute are contained in 200 milliliters of a 1 m solution?

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anfabba15
anfabba15 anfabba15
  • 03-03-2020

Answer:

0.2 moles of solute are in 200 mL

Explanation:

If we assume an aqueous solution, the solvent's density is 1g/mL

Solvent's volume = 200 mL

Solvent's density = Solvent's mass / Solvent's volume

Solvent's mass = solvent's density . solvent's volume → 200 mL . 1g/mL = 200 g

1 m means molality, we have 1 mol of solute in 1000 g of solvent, but in here the mass of solvent is 200 g. Let's make a rule of three:

1000 g of solvent have 1 mol of solute

Therefore, 200 g of solvent must have (200 .1) / 1000 = 0.2 moles

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