A 4.35-g piece of solid co2 (dry ice) is allowed to vaporize (change to co2(g)) in a balloon. the final volume of the balloon is 1.00 l at 300. k. what is the pressure of the gas?
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Answered by Dejanras
Answer is: the pressure of carbon dioxide is 2.41 atm. n(CO ₂) = m(CO₂) ÷ M(CO₂),n(CO₂) = 4.35 g ÷ 44 g/mol.n(CO₂) = 0.098 mol; amount of substance. V = 1.00, volume of gas. T = 300 K; temperature. R = 0.08206 L·atm/mol·K, universal gas constant. Ideal gas law: p·V = n·R·T. p = n·R·T / V. p = 0.098 mol · 0.08206 L·atm/mol·K · 300 K / 1.00 L. p = 2.41 atm.