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A

Anonymous

Feb 18, 2025

how many moles of KF are contained in 347g of water in a 0.175 m KF solution?PLEASE HELP, have been struggling with the last past hour.?

How many moles of KF are contained in 347 g of water in a 0.175 m KF solution? I would appreciate any assistance, as I have been struggling with this problem for the past hour. Thank you!

9 Answers

J
Joanny Hoeger

Feb 03, 2025

This is super late but [ 0.175 m KF] is the keyword here, the little 'm' means molality which is moles of solute/ kg of solvent. KF is the solute which we are trying to figure out, while the kg of solvent is the water (347g).

Equation to work/plug in is 0.175 m KF= moles of KF/Kg of solvent (water)

  1. Convert 347 g into kg, by multiplying 347 x 10^-3, which gives you .347 kg.

  2. Plug kg of water into bottom of equation.

  3. Solve for moles of KF by multiplying 0.175 m by .347

    (0.175m X .347 Kg) =.060725 moles of KF,

Answer: sig figs says= [6.07 x 10^-2]

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Feb 07, 2025

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Feb 15, 2025

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Jan 30, 2025

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Feb 12, 2025

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