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frosja888 [35]
2 years ago
13

2. 3. For her chemistry experiment, Marisol needs 2 liters of a 50% alcohol solution. The lab has two containers, one with 40% a

lcohol solution and the other with 80% alcohol solution a.) Write a system of linear equations that you can use to determine how many liters of each type of alcohol solution Marisol should combine to get 2 liters of a 50% alcohol solution. Be sure to define your variables.
b.) Solve the system and determine how many liters of each type of alcohol solution Marisol should combine. Show all your work. *Really need help with this I have no clue what to do?
Chemistry
1 answer:
Wewaii [24]2 years ago
3 0
A i am pretty sure. I might be wrong.
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Answer: Carbon dioxide is a pure substance.

Explanation: A pure substance is defined when a substance has a single type of molecule. If more than 1 type of molecule is present in a substance, then it is considered as a mixture.

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A solution contains 0.140 mol KCl in 2.100 L water. What is the concentration of KCl in g/L?
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<h3><u>Answer</u>;</h3>

≈ 4.95 g/L

<h3><u>Explanation;</u></h3>

The molar mass of KCl = 74.5 g/mole

Therefore; 0.140 moles will be equivalent to ;

 = 0.140 moles × 74.5 g/mole

 = 10.43 g

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   = mass in g/volume in L

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