How many milliliters of a 9.0 M H₂SO₄ solution are needed to make 0.45 L of a 3.5 M solution? A)0.18 mL B)1.2 mL C)180 mL D)1200 mL

Question

Quizplus · Accepted Answer

To solve the problem, we will use the formula:

C1V1 = C2V2

where: 
C1 = concentration of the initial solution 
V1 = volume of the initial solution 
C2 = concentration of the final solution 
V2 = volume of the final solution

Substituting the given values: 
C1 = 9.0 M 
C2 = 3.5 M 
V2 = 0.45 L

And solving for V1: 
C1V1 = C2V2 
V1 = (C2V2) / C1 
V1 = (3.5 M * 0.45 L) / 9.0 M 
V1 = 0.175 L = 175 mL

Therefore, we need 180 mL of the 9.0 M solution to make 0.45 L of a 3.5 M solution. 
The correct answer is choice C, 180 mL

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