Question

how to calculate number of moles of gas at STP​

Answer 1

Answer:

To convert between grams and moles, you would use the substance's molar mass. To go from grams to moles, divide the grams by the molar mass. 600 g58.443 g/mol = 10.27 mol of NaCl. It has been found that 1 mol of any gas at STP (Standard Temperature and Pressure = 0 °C and 1 atm) occupies 22.4 L.

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Answer 2

Number of moles for a gas in terms of volume is given by

n = Given Volume(V) ÷ (RT)

Where, R is the gas constant ≈ 0.08206 L atm/mol K

and T is the temperature which is 273.15 K

So,

$n = \frac{V}{22.414}$