1. What is the Prism Molarity Formula?

The Prism formula calculates molarity (M) from the mass of solute (m), molecular weight (MW), and volume of solution (V). Molarity is a fundamental concept in chemistry that measures the concentration of a solution.

2. How Does the Calculator Work?

The calculator uses the Prism formula:

Where:

• \( M \) — Molarity (mol/L)
• \( m \) — Mass of solute (g)
• \( MW \) — Molecular weight (g/mol)
• \( V \) — Volume of solution (L)

Explanation: The formula converts mass to moles (using molecular weight) and divides by volume to get concentration in moles per liter.

3. Importance of Molarity Calculation

Details: Accurate molarity calculations are essential for preparing solutions, conducting experiments, and performing quantitative chemical analysis.

4. Using the Calculator

Tips: Enter mass in grams, molecular weight in g/mol, and volume in liters. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What's the difference between molarity and molality?
A: Molarity is moles per liter of solution, while molality is moles per kilogram of solvent.

Q2: How do I find molecular weight?
A: Sum the atomic weights of all atoms in the molecule. For example, water (H₂O) has MW = 2(1.008) + 15.999 = 18.015 g/mol.

Q3: Can I use different units?
A: The calculator expects grams for mass and liters for volume. Convert other units before calculation.

Q4: Why is molarity temperature dependent?
A: Because volume changes with temperature, while mass remains constant. For precise work, note the temperature.

Q5: How accurate is this calculation?
A: It's mathematically exact, but accuracy depends on precise measurement of mass and volume.