Mass From Molarity

Mass from Molarity Equation:

\[ \text{mass (g)} = M \text{ (mol/L)} \times V \text{ (L)} \times MW \text{ (g/mol)} \]

Mass:

Unit Converter ▲

Unit Converter ▼

From:	To:

1. What is Mass from Molarity?

The mass from molarity calculation determines the amount of substance (in grams) needed to prepare a solution of specific concentration (molarity) and volume, given the molecular weight of the solute.

2. How Does the Calculator Work?

The calculator uses the equation:

\[ \text{mass (g)} = M \text{ (mol/L)} \times V \text{ (L)} \times MW \text{ (g/mol)} \]

Where:

\( M \) — Molarity (mol/L)
\( V \) — Volume (L)
\( MW \) — Molecular weight (g/mol)

Explanation: The equation converts between moles (from molarity × volume) and grams using the molecular weight conversion factor.

3. Importance of Mass Calculation

Details: Accurate mass calculation is essential for preparing solutions with precise concentrations, which is fundamental in chemistry, biology, and pharmaceutical applications.

4. Using the Calculator

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

5. Frequently Asked Questions (FAQ)

Q1: What units should I use?
A: The calculator uses mol/L for molarity, liters for volume, and g/mol for molecular weight. Convert your values to these units before calculation.

Q2: Can I use this for dilutions?
A: Yes, this calculates the mass of solute needed for a solution of specific concentration and volume.

Q3: What if my volume is in mL?
A: Convert mL to L by dividing by 1000 before entering the value (e.g., 500 mL = 0.5 L).

Q4: Does this work for all solutes?
A: Yes, as long as you know the molecular weight of the solute. For mixtures, use average molecular weight.

Q5: How precise should my measurements be?
A: Precision depends on your application. For analytical work, use high-precision balances and volumetric glassware.