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nlexa [21]
3 years ago
13

According to the images, the water level Lake Chad has been greatly reduced. For over twenty years, scientists have been using

Chemistry
1 answer:
horrorfan [7]3 years ago
7 0
It's satellite imagining. i just took the test on USATP.
I hope this helps!
( next time make sure to write the answer choices as well so it's easier for people to understand)
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What steps would you take in a lab to prepare 1000 mL of a 2 M NaCl solution
amm1812

Answer:

The answer to your question is below

Explanation:

Data

Volume = 1000 ml

Concentration = 2M

molecule = NaCl

Process

1.- Calculate the number of moles of NaCl

Molarity = moles/Volume

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moles = Molarity x Volume (liters)

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moles = 2 x 1

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2.- Determine the molar mass of NaCl

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3.- Calculate the mass of NaCl to prepare the solution

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                       x = 117g

4.- Weight 117 g of NaCl, place them in a volumetric flask (1 l), and add enough water to prepare the solution.

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4 years ago
Is combining ammonium chloride and water a physical or chemical change
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