Home
Class 11
CHEMISTRY
An organic compound was analysed by duma...

An organic compound was analysed by dumas method. 0.45 gm of the compound on combustion gave 48.6 ml nitrogen at `27^@C` and 756 mm pressure. Calculate the percentage composition of the compound.

Text Solution

Verified by Experts

`{:(V_1=48.6ml,,V_2=?),(P_1=756mm,,P_2=760mm):}`
`T_1=27+273=300K,T_2=273K`
Applying the general gas equation `(P_1V_1)/(T_1)=(P_2V_2)/(T_2)`
we get The volume of nitrogen at STP,
`V_2=(P_1V_1)/(T_1)(T_2)/(T_1)`
`=(756xx48.6)/(300)xx(273)/(760)`
`=43.99ml`
Mass of organic compound `=0.45gm`
Precentage of nitrogen in the compound
`=(28)/(22400)xx(V_2)/(W)xx100`
`=(28)/(22400)xx(43.99)/(0.45)xx100`
`=12.22`
Promotional Banner

Topper's Solved these Questions

  • PURIFICATION OF ORGANIC COMPOUNDS AND QUALITATIVE AND QUANTITATIVE ANALYSIS

    CENGAGE CHEMISTRY|Exercise Concept Application Type|18 Videos

  • PURIFICATION OF ORGANIC COMPOUNDS AND QUALITATIVE AND QUANTITATIVE ANALYSIS

    CENGAGE CHEMISTRY|Exercise Linked Comprehension Type|25 Videos

  • PURIFICATION OF ORGANIC COMPOUNDS AND QUALITATIVE AND QUANTITATIVE ANALYSIS

    CENGAGE CHEMISTRY|Exercise SOLVED EXAMPLES|17 Videos

  • PERIODIC CLASSIFICATION OF ELEMENTS AND GENERAL INORGANIC CHEMISTRY

    CENGAGE CHEMISTRY|Exercise Exercises (Archives )Subjective|4 Videos

  • REDOX REACTIONS

    CENGAGE CHEMISTRY|Exercise Archives (Integers)|1 Videos

Similar Questions

Explore conceptually related problems

0.2325 g of an organic compound was analysed for nitrogen by Duma's method. 31.7 mL of moist nitrogen was collected at 25°C and 755.8 mm pressure. Calculate the percentage of nitrogen in the sample (aq. tension of water at 25°C and 23.8 mm).

0.2325 g of organic compound was analysed for nitrogen by Dumas method . 31.7 mL of moist nitrogen was colleted at 25^(@) C and 755.8 mm of Hg pressure , Calculate the percentage of nitrogen in the sample (Aqueous tension of water at 25^@C is 23.8 mm of Hg )

0.27g of an organic compound gave on combustion 0.396 of CO_(2) 0.216g of H_(2)O 0.36g of the same substance gave 48.88 ml of N_(2) at 290K and 740mm pressure Calculate the percentage composition of the compound.

0.2g of an organic compound gave on combustion 0.55gm of CO_(2) and 0.0892g of H_(2)O .Calculate the percentage composition of Carbon in the compound.