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lesantik [10]
2 years ago
9

A student needs 500 mL of a 1.5 M solution of NaCl for an experiment. How many moles of NaCl should she use?

Chemistry
1 answer:
masha68 [24]2 years ago
5 0

Answer:

She should use 0.75 mol.

Explanation:

By definition, molarity (M) is the <u>number of moles of solute per liter of solution</u>. One liter of solution is equal to 1000 mL.

Therefore,

1000 mL -------- 1.5 moles of NaCl

500 mL --------- x= 0.75 moles of NaCl

The moles contained in 500 mL of a 1.5 M NaCl solution are 0.75.

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A: Helium or Hydrogen

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Now, these outer most ones are the surface ones and are surrounded primarily by layers of hydrogen and helium gases.

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Choose the correct statements from the list below:
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Calculate the molar mass of the acid.
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Balance the following chemical equation:<br> C2H60+02 → CO2 + H20
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3 0
2 years ago
A gas with a volume of 4.0L at a pressure of 205 kPa is allowed to expand to a volume of 12000 mL. What is the pressure in atmos
Leni [432]

Answer: The pressure in atmospheres is 0.674 in the container if the temperature remains constant.

Explanation:

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where,

P_1 = initial pressure of gas  = 205 kPa

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Therefore, the pressure in atmospheres is 0.674 in the container if the temperature remains constant.

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