NIRAMAY SHARMA
MOLE CONCEPT
FORMULA LIST
• N = Given mass (m) / Molar mass (M)
• n = Number of particles (N) / Avogadro's number (NA)
• n = Volume at STP (V) / 22.4 L
Avogadro's Number
• NA = 6.022 × 10²³ particles/mol
Mass-Related Formulas
Molar Mass (M)
• M = Mass of substance / Number of moles
• M = Atomic mass (for atoms) or Molecular mass (for molecules)
Percentage Composition
• % of element = (Mass of element in compound / Molar mass of compound) × 100
Gas Laws and Molar Volume
At STP (Standard Temperature and Pressure)
• 1 mole of any gas = 22.4 L at STP
• Molar volume = 22.4 L/mol at STP
Ideal Gas Equation
• PV = nRT
• Where: P = pressure, V = volume, n = moles, R = gas constant, T = temperature
NIRAMAY SHARMA
MOLE CONCEPT
FORMULA LIST
• N = Given mass (m) / Molar mass (M)
• n = Number of particles (N) / Avogadro's number (NA)
• n = Volume at STP (V) / 22.4 L
Avogadro's Number
• NA = 6.022 × 10²³ particles/mol
Mass-Related Formulas
Molar Mass (M)
• M = Mass of substance / Number of moles
• M = Atomic mass (for atoms) or Molecular mass (for molecules)
Percentage Composition
• % of element = (Mass of element in compound / Molar mass of compound) × 100
Gas Laws and Molar Volume
At STP (Standard Temperature and Pressure)
• 1 mole of any gas = 22.4 L at STP
• Molar volume = 22.4 L/mol at STP
Ideal Gas Equation
• PV = nRT
• Where: P = pressure, V = volume, n = moles, R = gas constant, T = temperature
NIRAMAY SHARMA
