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BaLLatris [955]
3 years ago
5

How do an independent variable and a dependent variable differ in a scientific investigation?

Chemistry
1 answer:
alisha [4.7K]3 years ago
8 0

Answer:

stop cheating and be smart

Explanation:

ugh sjdjdkxkdkdkdkdkdkdahahahajajaja

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A chemist needs 500.0 mL of a 1.500 M perchloric acid solution. The stockroom provides the chemist with
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Answer:-  47.62 mL

Solution:- It is a dilution problem where we are asked to calculate the volume of 15.75 M perchloric acid solution required to make 500.0 mL of 1.500 M solution.

For solving this type of problems we use the dilution equation:

M_1V_1=M_2V_2

Where, M_1 is the concentration of the concentrated solution and V_1 is it's volume.

M_2 is the concentration of the diluted solution and V_2 is it's volume.  Let's plug in the values in the equation and solve it for V_1 .

15.75M(V_1)=1.500M(500.0mL)

On rearranging this for V_1 :

V_1=\frac{1.500M(500.0mL)}{15.75M}

V_1=47.60mL

So, 47.62 mL of 15.75 M perchloric acid are required to make 500.0mL of 1.500 M solution.

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4 years ago
When potassium permanganate is stirred in water, it turns to purple. How would
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Oxygen and hydrogen are most likely to form what type of bond?
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