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White raven [17]
2 years ago
8

1.0 L of .50 M of NaCl

Chemistry
1 answer:
Vlada [557]2 years ago
8 0

Explanation:

From the given parameters we can calculate the mass and number of moles in this amount of solution of NaCl

Volume of solution = 1L

Molarity = 0.5M

We know that this is a solution. The molarity indicates that amount of solute was dissolved in a solvent.

To find the number of moles of solution;

Number of moles = molarity x volume

molarity is the the number of moles of solute in a solution.

 input the variables;

    Number of moles = 0.5 x 1 = 0.5moles

Mass of NaCl:

  Mass of NaCl = number of moles x molar mass

molar mass of NaCl = 58.54g/mol

  Mass of NaCl = 0.5 x 58.54 = 29.27g

learn more:

Molarity brainly.com/question/9324116

#learnwithBrainly

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The balanced chemical reaction:

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How many moles are in 20 grams of argon​
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Answer:

\boxed {\boxed {\sf 0.54 \ mol \ Cl_2}}

Explanation:

A mole is any quantity of a substance that contains 6.02 × 10²³ particles. At standard temperature and pressure, or STP, 1 mole of as is equal to 22.4 liters. This is true for any gas, regardless of the specific kind.

Although it is not specified, we can assume this gas is at STP. Let's set up a ratio using this information: 22.4 L/mol

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Flip the ratio so the liters of chlorine cancel.

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The original measurement of liters has 2 significant figures, so our answer must have the same.

For the number we found, that is the hundredth place.

  • 0.53<u>5</u>71428571

The 5 in the thousandth place tells us to round the 3 up to a 4.

0.54 \ mol \ Cl_2

12 liters of chlorine gas at STP is approximately <u>0.54 moles of chlorine gas.</u>

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