What is meant by 5 ppm `CaCO_(3)` solution?

Explanation

To understand what is meant by a 5 ppm \( \text{CaCO}_3 \) solution, we can break down the concept of ppm (parts per million) and how it applies to this specific solution.

### Step-by-Step Solution:

1. **Understanding ppm**:
- Ppm stands for "parts per million," which is a way to express very dilute concentrations of substances. It indicates how many parts of a substance are present in one million parts of the total solution.

2. **Conversion of ppm to mass**:
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