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Stels [109]
3 years ago
10

What is true of a solution of 2.0 M NaCl(aq)?

Chemistry
2 answers:
PilotLPTM [1.2K]3 years ago
8 0

The unit of M (molarity) is a unit of moles per liter of solution. So, the solution contains 2.0 moles of NaCl per 1 liter of solution.

alexgriva [62]3 years ago
6 0

Answer : The correct option is, It contains 2.0 moles of NaCl per 1 liter of solution.

Explanation : Given,

Molarity of NaCl solution = 2.0 M

Molarity : It is defined as the number of moles of solute present in one liter of solution. The unit of molarity is, mole/L or M.

Formula used :

\text{Molarity}=\frac{\text{Moles of }NaCl}{\text{Volume of solution in liters}}

2.0 M means that 2 moles of NaCl present in one liter of solution.

Therefore, the correct option is, It contains 2.0 moles of NaCl per 1 liter of solution.

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7. List all of the variables that you controlled or kept the same.<br>Salt water​
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Answer:

Temperature is a common type of controlled variable. If a temperature is held constant during an experiment, it is controlled. Other examples of controlled variables could be an amount of light, using the same type of glassware, constant humidity, or duration of an experiment.

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3 years ago
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We are given a function that calculates the amount of sample remaining after 't' years, which is:

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Putting values in above equation:

A_t(t)=458\times (\frac{1}{2})^{\frac{20}{30}

A_t(t)=288.522g

Hence, the amount of sample left after 20 years is 288.522 g

  • <u>For t = 50 years</u>

Putting values in above equation:

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3 years ago
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Answer:

\huge\boxed{\sf Option \ A}

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The name of Ion is Tin ( II ) Ion.

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
6 0
3 years ago
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i think it is a Cobrotoxin

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