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3 years ago

How to pass the dmv exam prep course

1 answer:

3 0

depending on what state you live in, there are practice tests online that you can use to help you when you take the test. Understanding the basic foundation of driving will help you and if you don't know an answer on the test, just think common sense. You've been a passenger in a driving car, what did the driver do in this situation? You know more than you think you do.

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If 50. 0 g of ch₃oh (mm = 32. 04 g/mol) are added to a 500. 0 ml volumetric flask, and water is added to fill the flask, what is

Elza [17]

Taking into account the definition of molarity, the concentration of CH₃OH in the solution is 3.12 $\frac{moles}{liters}$ .

<h3>Definition of molarity</h3>

Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.

The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:

$Molarity=\frac{number of moles}{volume}$

Molarity is expressed in units $\frac{moles}{liters}$ .

<h3>Concentration of CH₃OH</h3>

In this case, you know:

number of moles= 50 g× $\frac{1 mole}{32.04 g}$ = 1.56 moles, being 32.04 $\frac{g}{mole}$ the molar mass of CH₃OH
volume= 500 mL= 0.5 L (being 1000 mL= 1 L)

Replacing in the definition of molarity:

$Molarity=\frac{1.56 moles}{0.500 L}$

Solving:

<u><em>Molarity= 3.12 </em></u> $\frac{moles}{liters}$

Finally, the concentration of CH₃OH in the solution is 3.12 $\frac{moles}{liters}$ .

Learn more about molarity:

<u>brainly.com/question/9324116</u>

<u>brainly.com/question/10608366</u>

<u>brainly.com/question/7429224</u>

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2 years ago

This diagram shows the process of translation. Which statement is correct?.

lyudmila [28]

Answer:

That's think I have a good

6 0

2 years ago

For which of the following will an employment application most likely ask?

My name is Ann [436]

Answer: A. Education history

Explanation: Parental employment history and loan history are not things they are not supposed to ask about and financial history is generally considered private. Education history makes the most sense because they would want to know if their applicants have the education needed for the job.

Hope this helps! :)

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4 years ago

Read 2 more answers

Gavin’s gross pay is $3851. His deductions total $756. 72. What percent of his gross pay is take-home pay? 20% 24% 80% 82%.

Arte-miy333 [17]

Answer:

Percentage of his gross pay which is take-home pay is 80.35%.

Explanation:

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3 years ago

What advice would you give someone when deciding whether a news story is reliable? Be sure

Aloiza [94]

Id say definitely read the url and put it in a url scanner if a news article is factual there’s probably other news articles with the same facts try to find some of those

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3 years ago

Read 2 more answers