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Calculate Concentration From Molecular Weight

Concentration Formula:

\[ C = \frac{m}{MW \times V} \]

g
g/mol
L

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1. What is Concentration Calculation?

The concentration calculation determines the molarity of a solution based on the mass of solute, its molecular weight, and the volume of solution. It's fundamental in chemistry for preparing solutions with precise concentrations.

2. How Does the Calculator Work?

The calculator uses the concentration formula:

\[ C = \frac{m}{MW \times V} \]

Where:

Explanation: The formula converts mass to moles using molecular weight, then divides by volume to get molar concentration.

3. Importance of Concentration

Details: Accurate concentration calculation is essential for preparing solutions in laboratory work, pharmaceutical formulations, chemical reactions, and analytical chemistry.

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 if my volume is in mL?
A: Convert mL to L by dividing by 1000 before entering the value (1 mL = 0.001 L).

Q2: Can I use this for mixtures?
A: This calculates molarity for a single solute. For mixtures, you'd need to calculate each component separately.

Q3: What about temperature effects?
A: This assumes standard conditions. For precise work, temperature corrections may be needed.

Q4: How accurate is this calculation?
A: The calculation is mathematically exact, but actual solution preparation requires accurate measurements.

Q5: Can I calculate mass from concentration?
A: Yes, you can rearrange the formula: \( m = C \times MW \times V \).

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