Calculate the volume in 10 millimoles of solute present in 0.08 M solution.

Explanation

To calculate the volume of a solution containing 10 millimoles of solute in a 0.08 M solution, we can follow these steps:

### Step 1: Convert millimoles to moles
We know that:
- 1 millimole = \(10^{-3}\) moles

So, to convert 10 millimoles to moles:
\[ 10 \text{ millimoles} = 10 \times 10^{-3} \text{ moles} = 0.01 \text{ moles} \]

### Step 2: Use the molarity formula
The molarity (M) is defined as:
\[ \text{Molarity (M)} = \frac{\text{Number of moles}}{\text{Volume in liters}} \]

We can rearrange this formula to find the volume:
\[ \text{Volume in liters} = \frac{\text{Number of moles}}{\text{Molarity}} \]

### Step 3: Substitute the values into the formula
We have:
- Number of moles = 0.01 moles
- Molarity = 0.08 M

Now, substituting these values into the formula:
\[ \text{Volume in liters} = \frac{0.01 \text{ moles}}{0.08 \text{ M}} = 0.125 \text{ liters} \]

### Step 4: Convert volume from liters to milliliters
Since 1 liter = 1000 milliliters, we can convert the volume:
\[ 0.125 \text{ liters} = 0.125 \times 1000 \text{ mL} = 125 \text{ mL} \]

### Final Answer
The volume of the solution containing 10 millimoles of solute in a 0.08 M solution is **125 mL**.

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