Hope someone could help me out Plz show all the calculation (molar mass) and unk

Question

Hope someone could help me out Plz show all the calculation (molar mass) and unknown liquid
Trial 1 1. Mass of dry Erlenmeyer flask and aluminum foil cap (g) 2. Mass of dry Erlenmeyer flask, aluminum foil and condensed vapor (g) 95.62 3. Mass of condensed vapor (g) 4. Temperature of the boiling water (oC) 10 5. Temperature of vapor in flask, T (K) 374 15 k 6. Atmospheric pressure, P (atm) 7. Volume of the Erlenmeyer flask, v L) 8. Molar mass of the unknown (g/mol) (3) x 0.0821 Latm/molK) x (5) Show your molar mass calculations for each trial on the space below. Trial 1 Identity of unknown liquid from Table 1: Trial 2

Explanation / Answer

Given that,

mass, m = 0.19 g.

Pressure, P = 1.013 atm

Volume , V = 0.155 L

Temperature, T = 374.15 K

R = 0.0821 L.atm.K-1.mol-1

Molar mass, M = ?

Ideal gas equation,

P V = n R T

P V = (m/M) R T

M = m R T / P V

M = 0.19 * 0.0821 * 374.15 / (1.013 * 0.155)

M = molar mass = 37.2 g/mol

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