You need to make 4,450 ml of a 10% glucose solution. You have a 80% stock solution of glucose on the shelf. How many milliliters of 80% glucose will be needed to make your dilution?

To solve this, we will use the **dilution formula**, which is:

\[
C_1 \times V_1 = C_2 \times V_2
\]

Where:
- \( C_1 \) is the concentration of the stock solution (80% glucose),
- \( V_1 \) is the volume of the stock solution we need to find,
- \( C_2 \) is the concentration of the final solution (10% glucose),
- \( V_2 \) is the volume of the final solution (4,450 ml).

We can rearrange the formula to solve for \( V_1 \):

\[
V_1 = \frac{C_2 \times V_2}{C_1}
\]

Now, substituting the values:

\[
V_1 = \frac{10\% \times 4450 \, \text{ml}}{80\%}
\]

\[
V_1 = \frac{0.10 \times 4450}{0.80} = \frac{445}{0.80} = 556.25 \, \text{ml}
\]

So, you will need **556.25 ml** of the 80% glucose solution to make 4,450 ml of a 10% glucose solution.

Would you like further clarification or additional details?

### Related questions:
1. How would the calculation change if the final volume was doubled?
2. What is the process to dilute a stock solution in practice?
3. If only 70% glucose stock is available, how much would be needed?
4. How would you calculate the water required to reach 4,450 ml?
5. How do you express glucose concentration in terms of grams per milliliter?

### Tip:
Always ensure to double-check your dilution factor calculations to avoid concentration errors in experiments!

You need to make 4,450 ml of a 10% glucose solution. You have an 80% stock solution of glucose on the shelf. How many milliliters of 80% glucose will be needed to make your dilution?

Learn how to calculate the volume of an 80% glucose solution needed to make 4,450 ml of a 10% glucose solution using the dilution formula. This step-by-step guide will walk you through the process of calculating the required volume of stock solution. Perfect for high school chemistry students.

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