Molecular Mass of Liquid forming Immiscible Mixture with Water Calculator

Formula Used:

\[ M_B = \frac{P°_{water} \times M_{water} \times W_B}{P°_B \times W_{water}} \]

Partial Pressure of Pure Water:

Pascal

Molecular Mass of Water:

Weight of Liquid B:

Vapor Pressure of Pure Component B:

Pascal

Weight of Water in Mixture:

Molecular Mass of Liquid B (kg):

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1. What is Molecular Mass of Liquid in Immiscible Mixture?

Definition: This calculator determines the molecular mass of a liquid (B) in an immiscible mixture with water using vapor pressure measurements.

Purpose: It helps chemists and researchers determine molecular weights of liquids that don't mix with water through simple experiments.

2. How Does the Calculator Work?

The calculator uses the formula:

\[ M_B = \frac{P°_{water} \times M_{water} \times W_B}{P°_B \times W_{water}} \]

Where:

\( M_B \) — Molecular mass of liquid B (kg)
\( P°_{water} \) — Partial pressure of pure water (Pa)
\( M_{water} \) — Molecular mass of water (0.018 kg)
\( W_B \) — Weight of liquid B (kg)
\( P°_B \) — Vapor pressure of pure component B (Pa)
\( W_{water} \) — Weight of water in mixture (kg)

Explanation: The formula relates the molecular mass to the ratio of vapor pressures and weights of the components.

3. Importance of This Calculation

Details: Determining molecular mass is fundamental in chemistry for identifying substances, calculating stoichiometry, and understanding physical properties.

4. Using the Calculator

Tips: Enter all required values in consistent units (kg for mass, Pa for pressure). The molecular mass of water is pre-set to 0.018 kg (18 g).

5. Frequently Asked Questions (FAQ)

Q1: What are immiscible liquids?
A: Liquids that don't mix to form a homogeneous solution (e.g., oil and water).

Q2: Why is water used as a reference?
A: Water's properties are well-known and it's commonly available, making it a good reference substance.

Q3: How accurate is this method?
A: It provides reasonable estimates but may have errors from measurement inaccuracies or non-ideal behavior.

Q4: What units should I use?
A: Use consistent SI units: kg for mass, Pascal for pressure.

Q5: Can I use this for miscible liquids?
A: No, this formula specifically applies to immiscible liquid mixtures.