1. What is mM Concentration?

Millimolar (mM) concentration is a unit of measurement that represents one-thousandth of a mole per liter of solution. It is commonly used in chemistry and biochemistry to express the concentration of substances in solution.

2. How Does the Calculator Work?

The calculator uses the mM concentration formula:

Where:

• \( g/L \) — Concentration in grams per liter
• \( MW \) — Molecular weight in grams per mole
• \( 1000 \) — Conversion factor from moles to millimoles

Explanation: This formula converts mass concentration (g/L) to molar concentration (mM) by dividing by the molecular weight and multiplying by 1000 to convert from molar to millimolar.

3. Importance of mM Concentration

Details: mM concentration is essential in chemical and biological research for preparing solutions with precise concentrations, conducting experiments, and ensuring reproducibility in scientific studies.

4. Using the Calculator

Tips: Enter concentration in grams per liter (g/L) and molecular weight in grams per mole (g/mol). Both values must be positive numbers greater than zero.

5. Frequently Asked Questions (FAQ)

Q1: What is the difference between mM and M?
A: M (molar) represents moles per liter, while mM (millimolar) represents millimoles per liter. 1 M = 1000 mM.

Q2: Why multiply by 1000 in the formula?
A: The multiplication by 1000 converts from molar (M) to millimolar (mM) concentration units.

Q3: Can this calculator be used for any compound?
A: Yes, as long as you know the molecular weight of the compound and its concentration in g/L.

Q4: What if my concentration is in different units?
A: Convert your concentration to g/L first before using this calculator. For example, mg/mL to g/L: multiply by 1.

Q5: How accurate is this calculation?
A: The calculation is mathematically exact. Accuracy depends on the precision of your input values for concentration and molecular weight.