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## CSD-11 ### No. of moles = given number /wt of substance (gram) /Mol. Wt. [Universal formula applicable on all States of matter (gas, liquid, solid)] ### No. of moles = volume of gas at STP (liters) / 22.4 [Only applicable for gas at STP condition] (P= 1 atm, T = 273.5K) 1 mole gas = 22.4 lite...

## CSD-11 ### No. of moles = given number /wt of substance (gram) /Mol. Wt. [Universal formula applicable on all States of matter (gas, liquid, solid)] ### No. of moles = volume of gas at STP (liters) / 22.4 [Only applicable for gas at STP condition] (P= 1 atm, T = 273.5K) 1 mole gas = 22.4 liters at STP ### Conversion **(a)** Wt / Mol. Wt → mole → Volume at STP * 22.4 liters **(b)** Vol. of gas at STP / 22.4 liters → mole → Number * NA