Home
Back
Millimolar to Percentage Formula:
| From: | To: |
The millimolar to percentage conversion calculates the percentage concentration of a solution from its millimolar concentration and molecular weight. This is commonly used in chemistry, biochemistry, and pharmaceutical preparations to express solution strength in percentage terms.
The calculator uses the conversion formula:
Where:
Explanation: This formula converts millimolar concentration to percentage by weight/volume, assuming a density of approximately 1 g/mL for aqueous solutions.
Details: Percentage concentration is widely used in laboratory protocols, medical formulations, and industrial applications. It provides an intuitive understanding of solution strength and facilitates accurate preparation of solutions with desired concentrations.
Tips: Enter millimolar concentration in mmol/L and molecular weight in g/mol. Both values must be positive numbers. The calculator assumes aqueous solutions with density of 1 g/mL for accurate percentage calculation.
Q1: What is the difference between molar and millimolar?
A: Molar (M) is moles per liter, while millimolar (mM) is millimoles per liter. 1 M = 1000 mM.
Q2: When is percentage concentration preferred over molarity?
A: Percentage is often preferred in clinical settings, pharmaceutical preparations, and when the exact molecular weight is unknown or variable.
Q3: How accurate is this conversion for non-aqueous solutions?
A: The conversion assumes density of 1 g/mL, so for non-aqueous solutions with different densities, the result may need adjustment based on actual density.
Q4: Can this calculator be used for protein solutions?
A: Yes, but note that for proteins, molecular weight may refer to the monomeric form, and concentration is typically expressed as mg/mL rather than percentage.
Q5: What are common applications of this conversion?
A: Common applications include preparing laboratory reagents, pharmaceutical formulations, buffer solutions, and standardizing analytical methods.