⚗ General Chemistry
Stoichiometry, electronic structure, redox, thermochemistry, phase equilibria, pH and electrochemistry. Theory, examples, and solved exercises.
Complete Theory
Worked Examples
Example 1Pressure of an ideal gas
Example 2Pressure with Van der Waals correction
Exercises with Solutions
Exercise 1Dalton's lawMedium
📋 Problem to solve
A 5.0 L container at 298 K holds 0.50 mol N₂ and 0.30 mol O₂. Calculate the partial pressures and the total pressure.
📌 Given data
n(N₂) = 0.50 moln(O₂) = 0.30 molV = 5.0 LT = 298 K
Exercise 2Gas densityMedium
📋 Problem to solve
Calculate the density of CO₂ (M = 44.0 g/mol) at 1.00 atm and 273 K.
📌 Given data
M = 44.0 g/molP = 1.00 atmT = 273 K
Exercise 3Van der WaalsHard
📋 Problem to solve
Calculate the volume occupied by 1.00 mol of Cl₂ at 10.0 atm and 300 K using the Van der Waals equation (, ).
📌 Given data
n = 1.00 molP = 10.0 atmT = 300 Ka = 6.34 L²·atm·mol⁻²b = 0.0542 L·mol⁻¹
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