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kirill [66]
4 years ago
5

A laboratory assistant needs to prepare 217 mL of 0.246 M solution. How many grams of calcium chloride will she need

Chemistry
1 answer:
agasfer [191]4 years ago
5 0

Answer:

5.92 g

Explanation:

Convert milliliters to liters.

217 mL = 0.217 L

Since molarity (M) is moles per liter(mol/L), multiply the molarity by the volume to find out how many moles you will need.

0.217 L × 0.246 M = 0.05338 mol

Now, convert the moles to grams using the molar mass.  The molar mass of calcium chloride is 110.98 g/mol.

0.05338 mol × 110.98 g/mol = 5.924 g ≈ 5.92 g

You will need 5.92 g of calcium chloride.

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dybincka [34]

Answer:

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When writing these proportions, it is important that they are arranged in a way that allows for the cancellation of units. For instance, since m is located in the denominator, it must be located in the numerator of the conversion.

<u>Proportion:</u>

1 m = 100 cm

The full expression:

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7 0
2 years ago
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6 0
4 years ago
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8 0
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anyanavicka [17]

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