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What is the molar mass of unknown liquid

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PRE-LAB - MOLAR MASS OF ISOPROPYL ALCOHOL USING DUMAS METHOD

PreLabWorksheet

1. The value of the Ideal Gas Constant (R) is:

What are the units of:

P ; Volume ; Temp .

2. Sample experiment:

a. Weight of condensed unknown liquid. 0.1753 g

b. Temperature of H2O bath. 99.0 oC

c. Pressure of gas, barometer. 753.2 mmHg

d. Volume of flask, volume of gas 135 mL

(1) Use PV = nRT to find out the number of moles of unknown liquid.

(2) What is the molar mass of unknown liquid?

Attachment:- Lab.rar

Reference no: EM131727925

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