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zimovet [89]
3 years ago
12

HELP WITH MOLE CONVERSIONS ?

Chemistry
1 answer:
denis-greek [22]3 years ago
6 0
<span>Converting from mass (grams) to moles: Divide your initial mass by the molar mass of the compound as determined by the periodic table.<span>Converting from moles to mass (grams): </span>Multiply your initial mole value by the molar mass of the compound as determined by the periodic table.<span>Converting from volume (liters) to moles: </span>Divide your initial volume by the molar volume constant, 22.4 L.<span>Converting from moles to volume (liters): </span>Multiply your mole value by the molar volume constant, 22.4L.<span>Converting from particles (atoms, molecules, or formula units) to moles: </span>Divide your particle value by Avogadro’s number, 6.02×1023. Remember to use parentheses on your calculator!<span>Converting from moles to particles (atoms, molecules, or formula units): </span>Multiply your mole value by Avogadro’s number, 6.02×1023.<span>Mole-to-mole conversions: </span>Use the coefficients from your balanced equation to determine your conversion factor. Be sure your units cancel out so you end up with the correct mole value.</span>
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At 25.0°c, a solution has a concentration of 3.179 m and a density of 1.260 g/ml. the density of the solution at 50.0°c is 1.249
oksano4ka [1.4K]

Answer: -

3.151 M

Explanation: -

Let the volume of the solution be 1000 mL.

At 25.0 °C, Density = 1.260 g/ mL

Mass of the solution = Density x volume

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At 25.0 °C, the molarity = 3.179 M

Number of moles present per 1000 mL = 3.179 mol

Strength of the solution in g / mol

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= 1249 g.

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= 3.151 moles.

So 3.151 moles is present in 1000 mL at 50.0 °C

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Explanation:

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