At STP, 12.69 g of a noble gas occupies 14.09 L. What is the identity of the noble gas?

2 Answers

  • Ar STP, 1 mol of gas = 22.4 litres

    Mass of 22.4 litres = 22.4/14.09*12.69 = 20.174g/mol

    Gas is neon.

  • at STP and recommendations-blowing gas is 22.4L/mol a million.783g/L x 22.4L/mol=39.9392g/mol C. Ar= 39.948 this is the closest to the calculated cost of the given aspects molar hundreds. the respond is C

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