G/L To Mmol/L Calculator For Water

Conversion Formula:

\[ \text{mmol/L} = \frac{\text{g/L}}{18.015} \]

Where 18.015 g/mol is the molecular weight of water (H₂O)

Concentration in mmol/L:

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1. What Is This Conversion?

This calculator converts concentration values from grams per liter (g/L) to millimoles per liter (mmol/L) specifically for water solutions. The conversion uses the molecular weight of water (18.015 g/mol) to perform the calculation.

2. How The Calculation Works

The conversion formula is:

\[ \text{mmol/L} = \frac{\text{g/L}}{18.015} \]

Where:

g/L — Grams of water per liter of solution
18.015 — Molecular weight of water (H₂O) in g/mol
mmol/L — Millimoles of water per liter of solution

Explanation: This conversion is based on the relationship between mass concentration and molar concentration, using water's specific molecular weight.

3. Importance of This Conversion

Details: Converting between mass concentration (g/L) and molar concentration (mmol/L) is essential in chemistry, biology, and medical applications where precise measurements of water concentration are required.

4. Using The Calculator

Tips: Simply enter the concentration in grams per liter (g/L) and the calculator will automatically compute the equivalent value in millimoles per liter (mmol/L).

5. Frequently Asked Questions (FAQ)

Q1: Why is the molecular weight of water 18.015 g/mol?
A: Water (H₂O) has a molecular weight of approximately 18.015 g/mol, calculated as (2 × 1.008 for hydrogen) + (1 × 15.999 for oxygen).

Q2: Can this calculator be used for other substances?
A: No, this calculator is specifically for water. Other substances require their own molecular weights for conversion.

Q3: What's the difference between g/L and mmol/L?
A: g/L measures mass concentration (grams of solute per liter), while mmol/L measures molar concentration (millimoles of solute per liter).

Q4: When would I need to make this conversion?
A: This conversion is useful in chemical preparations, laboratory work, and when working with solutions where molar concentration is more meaningful than mass concentration.

Q5: How precise is this conversion?
A: The conversion is mathematically precise, using the standard molecular weight of water. Results are rounded to 4 decimal places for practical use.