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JunaidMirza:
I’m getting a) 15
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Q. 0.216 g of an organic compound gave 28.8 cm³ of moist nitrogen measured at 288K and 732.7mm pressure. The percentage of nitrogen in the mixture is approximately (Aq.Tension at 288K = 12.7mm)
Answer: 15%
To answer this question you should remember the following things
Pressure of dry gas = Total Pressure of gas - Aqueous Tension
760 mmHg = 1 atm
1 cm³ = 10⁻³ litre
Molar mass of nitrogen (N₂) = 28 g/mol
Percentage of a substance in mixture = [Mass of substance/Mass of mixture] × 100
Solution is in image attached.
Answer: 15%
To answer this question you should remember the following things
Pressure of dry gas = Total Pressure of gas - Aqueous Tension
760 mmHg = 1 atm
1 cm³ = 10⁻³ litre
Molar mass of nitrogen (N₂) = 28 g/mol
Percentage of a substance in mixture = [Mass of substance/Mass of mixture] × 100
Solution is in image attached.
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