How many liters of 0.8 M HCI is needed to make 0.80 L of 0.17 M HCI? (give your answer to 3 decimal places)

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### Solution to Dilution Problem: Calculating Required Volume of Concentrated HCl 

#### Problem Statement:
How many liters of 0.8 M HCl is needed to make 0.80 L of 0.17 M HCl? (give your answer to 3 decimal places)

#### Detailed Explanation:

To solve this problem, we need to use the dilution equation:
\[ C_1V_1 = C_2V_2 \]

Where:
- \( C_1 \) is the concentration of the stock solution.
- \( V_1 \) is the volume of the stock solution needed.
- \( C_2 \) is the concentration of the diluted solution.
- \( V_2 \) is the volume of the diluted solution.

Given values:
- \( C_1 = 0.8 \) M
- \( C_2 = 0.17 \) M
- \( V_2 = 0.80 \) L

We need to find \( V_1 \).

\[ 0.8 \, \text{M} \times V_1 = 0.17 \, \text{M} \times 0.80 \, \text{L} \]

\[ V_1 = \frac{0.17 \, \text{M} \times 0.80 \, \text{L}}{0.8 \, \text{M}} \]

\[ V_1 = \frac{0.136 \, \text{M} \cdot \text{L}}{0.8 \, \text{M}} \]

\[ V_1 = 0.170 \, \text{L} \]

#### Answer:
To prepare 0.80 L of a 0.17 M HCl solution, you need 0.170 L of 0.8 M HCl.
Transcribed Image Text:### Solution to Dilution Problem: Calculating Required Volume of Concentrated HCl #### Problem Statement: How many liters of 0.8 M HCl is needed to make 0.80 L of 0.17 M HCl? (give your answer to 3 decimal places) #### Detailed Explanation: To solve this problem, we need to use the dilution equation: \[ C_1V_1 = C_2V_2 \] Where: - \( C_1 \) is the concentration of the stock solution. - \( V_1 \) is the volume of the stock solution needed. - \( C_2 \) is the concentration of the diluted solution. - \( V_2 \) is the volume of the diluted solution. Given values: - \( C_1 = 0.8 \) M - \( C_2 = 0.17 \) M - \( V_2 = 0.80 \) L We need to find \( V_1 \). \[ 0.8 \, \text{M} \times V_1 = 0.17 \, \text{M} \times 0.80 \, \text{L} \] \[ V_1 = \frac{0.17 \, \text{M} \times 0.80 \, \text{L}}{0.8 \, \text{M}} \] \[ V_1 = \frac{0.136 \, \text{M} \cdot \text{L}}{0.8 \, \text{M}} \] \[ V_1 = 0.170 \, \text{L} \] #### Answer: To prepare 0.80 L of a 0.17 M HCl solution, you need 0.170 L of 0.8 M HCl.
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