Freezing Point Of Lauric Acid (2024)

FAQs

Freezing Point Of Lauric Acid? ›

Answers to Data Analysis

Question: - Data - Part 1: Pure Lauric Acid: 8.16g The freezing point of pure Lauric Acid = 43.9 degrees celsius Part 2: Mixture Lauric Acid: 8.19g Benzoic Acid: 1.05g Freezing Point: 39.9 degrees.

The freezing-point depression constant (Kf) for lauric acid is given (3.9˚C•kg/mol).

Question: mass of lauric acid = 8.04 g mass of benzoic acid = 1.02 g freezing temperature of pure lauric acid = 38.2c freezing point of the benzoic acid- lauric acid mix = 39.6c 1- calculate the molality(m), in mol/kg, using the formula delta(t) = Kf * m.

Lauric acid has a melting point of about 45°C and is easily melted in a test tube placed in a beaker of hot water. The temperature can be followed using a thermometer or temperature probe connected to a data logger.

Freezing Point: Most acids have a lower freezing point than pure water due to the presence of dissolved ions. This means an acid solution will typically freeze at a temperature below 0°C (32°F).

109.8°F (43.2°C)

Lauric acid / Melting point

How to calculate freezing point depression? The equation for freezing point depression is T=i*Kf*m, where T is the change in freezing point, i is the van't Hoff factor, Kf is the freezing point depression constant, and m is the molality of the solution.

Conclusion To summarise this lab, it took us a total of 21 min to go from a liquid lauric acid to a solid. First, we melted the lauric acid and then waited for it to cool down and reach 65 c before we put it into water. It was liquid and then it started to solidify as more time passed by.

Lauric acid is a solid at room temperature but melts easily in boiling water, so liquid lauric acid can be treated with various solutes and used to determine their molecular masses.

What is the decomposition temperature of lauric acid? ›

The initial decomposition temperatures of L–S and LS/EP are 110.08 °C and 132.20 °C, the fastest decomposition temperatures are 241.19 °C and 218.15 °C, and the end decomposition temperatures are 276.25 °C and 255.38 °C.

From our lab, Did the Lauric Acid undergo a chemical change? No, because the particles themselves did not change we just sped them up. Instead it was a physical change.

Properties and applications of palmitic acid

Its freezing point ranges from 45-55°C depending on the stearic acid content and its degree of hydrogenation.

The freezing point of lauric acid is 44 °C, based on the plateau observed at this temperature on the graph. observed on the graph at this temperature. 6. Freezing point depression: 44 °C - 42 °C = 2 °C.

4.1 Flash Point: >230°F C.C. 4.3 Fire Extinguishing Agents: Carbon dioxide, dry chemical, alcohol foam, water spray. Product): 24.0 (calc.)

Stearic acid, CH ₃(CH ₂) ₁₆COOH, is also known as n-octadecanoic acid and has a freezing point of 69.0°C and a k_f of 4.5°C/m.

Answer: (d) Lauric acid has a higher melting point than water because it is a much larger molecule and has more LDFs which are ultimately stronger than water's hydrogen bonding. Based on the given description, the melting point of lauric acid is approximately room temperature during summer.