To solve this problem, we can use the formula M1V1 = M2V2, where M1 is the molarity of the initial solution, V1 is the volume of the initial solution, M2 is the molarity of the final solution, and V2 is the volume of the final solution.

Given:
M1 = 3.50 M
M2 = 1.00 M
V2 = 500.0 mL

We need to find V1.

Substituting the given values into the formula, we get:

3.50 M * V1 = 1.00 M * 500.0 mL

Solving for V1, we get:

V1 = (1.00 M * 500.0 mL) / 3.50 M

V1 = 142.857 mL

However, we need to express our answer to the correct number of significant figures. The least number of significant figures given in the problem is three (from the 3.50 M HCl solution). Therefore, we should round our answer to three significant figures.

V1 = 143 mL

So, the T.A. needs 143 mL of the 3.50 M HCl solution to make 500.0 mL of a 1.00 M HCl solution.

Question

To solve this problem, we can use the formula M1V1 = M2V2, where M1 is the molarity of the initial solution, V1 is the volume of the initial solution, M2 is the molarity of the final solution, and V2 is the volume of the final solution.

Given:
M1 = 3.50 M
M2 = 1.00 M
V2 = 500.0 mL

We need to find V1.

Substituting the given values into the formula, we get:

3.50 M * V1 = 1.00 M * 500.0 mL

Solving for V1, we get:

V1 = (1.00 M * 500.0 mL) / 3.50 M

V1 = 142.857 mL

However, we need to express our answer to the correct number of significant figures. The least number of significant figures given in the problem is three (from the 3.50 M HCl solution). Therefore, we should round our answer to three significant figures.

V1 = 143 mL

So, the T.A. needs 143 mL of the 3.50 M HCl solution to make 500.0 mL of a 1.00 M HCl solution.

Knowee AI · Accepted Answer

To solve this problem, we can use the formula M1V1 = M2V2, where M1 is the molarity of the initial solution, V1 is the volume of the initial solution, M2 is the molarity of the final solution, and V2 is the volume of the final solution.

Given:
M1 = 3.50 M
M2 = 1.00 M
V2 = 500.0 mL

We need to find V1.

Substituting the given values into the formula, we get:

3.50 M * V1 = 1.00 M * 500.0 mL

Solving for V1, we get:

V1 = (1.00 M * 500.0 mL) / 3.50 M

V1 = 142.857 mL

However, we need to express our answer to the correct number of significant figures. The least number of significant figures given in the problem is three (from the 3.50 M HCl solution). Therefore, we should round our answer to three significant figures.

V1 = 143 mL

So, the T.A. needs 143 mL of the 3.50 M HCl solution to make 500.0 mL of a 1.00 M HCl solution.

A T.A. decides to prepare a more dilute solution from a stock solution. What volume of a 3.50 M HCl in milliliters is required to make 500.0 mL of a 1.00 M HCl solution? Express your answer to the correct number of significant figures.

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