A molecule with the formula AB3 has a trigonal planar geometry. How many electron groups are
on the central atom?
Solution :Step 1 : Given, Mass of gas in 2-L flask = 4.8g. Pressure of gas in 2-L flask = X xtm. Mass of gas in 3-L flask = 0.36g. Pressure of gas in 3-L flask = 0.1 X atm.We should find if two gases have the same molar mass, if not which contains the gas of highermolar mass. Consider ideal gas equation : PV = nRT ‘n’ , number of moles can be calculated as mass divided by molar mass. Hence we canrewrite the ideal gas equation as : Mass PV = Molar mass ×RTUsing the above equation, we can find the molar mass of the gases. Mass×RT Molar mass = PV
Textbook: Chemistry: A Molecular Approach
Author: Nivaldo J. Tro
The answer to “A molecule with the formula AB3 has a trigonal planar geometry. How many electron groups areon the central atom?” is broken down into a number of easy to follow steps, and 19 words. This textbook survival guide was created for the textbook: Chemistry: A Molecular Approach, edition: 3. Chemistry: A Molecular Approach was written by and is associated to the ISBN: 9780321809247. This full solution covers the following key subjects: atom, central, electron, formula, geometry. This expansive textbook survival guide covers 82 chapters, and 9454 solutions. Since the solution to 32E from 10 chapter was answered, more than 584 students have viewed the full step-by-step answer. The full step-by-step solution to problem: 32E from chapter: 10 was answered by , our top Chemistry solution expert on 02/22/17, 04:35PM.