0.001 moles of a compound is present in 100 mL of its solution. The concentration of solution is:

Explanation

To find the concentration of the solution in terms of molarity, we can follow these steps:

### Step 1: Identify the given data
- Number of moles of the compound (n) = 0.001 moles
- Volume of the solution (V) = 100 mL

### Step 2: Convert the volume from mL to L
To convert milliliters to liters, we use the conversion factor:
\[ 1 \text{ L} = 1000 \text{ mL} \]
Thus,
\[ V = 100 \text{ mL} = \frac{100}{1000} \text{ L} = 0.1 \text{ L} \]

### Step 3: Use the formula for molarity
Molarity (M) is defined as the number of moles of solute divided by the volume of solution in liters:
\[ M = \frac{n}{V} \]
Where:
- \( n \) = number of moles of solute
- \( V \) = volume of solution in liters

### Step 4: Substitute the values into the formula
Substituting the values we have:
\[ M = \frac{0.001 \text{ moles}}{0.1 \text{ L}} \]

### Step 5: Calculate the molarity
Now, performing the calculation:
\[ M = \frac{0.001}{0.1} = 0.01 \text{ M} \]

### Conclusion
The concentration of the solution is **0.01 M** (molar).

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