
Interpretation:
The molecular formula of the compound is to be determined.
Concept introduction:
Molar mass is the mass of one mole of a substance in grams. Molar mass of a compound is equal to the sum of the
The relation between molarity and osmotic pressure is mathematically expressed as follows:
Here,
The number of moles of solute are calculated as follows:
The molar mass of unknown solute is calculated as follows:
The molecular formula is the formula that gives the exact number of atoms present in that molecule.

Answer to Problem 86QP
Solution:
Explanation of Solution
Given information:
The molarity using osmotic pressure is mathematically calculated as follows:
Here,
Molarity can be determined by substituting the values in the above equation as follows:
The volume of the solution is
The molar mass of unknown solute is calculated as follows:
Now, calculate the number of moles of various constituents(assuming mass in
Moles of carbon are calculated as follows:
Moles of hydrogen are calculated as follows:
Moles of oxygen are calculated as follows:
Moles of nitrogen are calculated as follows:
The molar ratio of carbon, hydrogen, oxygen, and nitrogen is
Therefore, the empirical formula of the compound is
The empirical formula mass is calculated as follows:
Divide the molar mass by the empirical formula mass to get the value of
Now, the molecular formula can be obtained using the expression as follows:
The molecular formula of the compound is
Want to see more full solutions like this?
Chapter 13 Solutions
CHEMISTRY >CUSTOM<
- Indicate the products obtained by mixing 2,2-dimethylpropanal with acetaldehyde and sodium ethoxide in ethanol.arrow_forwardSynthesize 2-Ethyl-3-methyloxirane from dimethyl(propyl)sulfonium iodide using the necessary organic or inorganic reagents. Draw the structures of the compounds.arrow_forwardSynthesize 2-Hydroxy-2-phenylacetonitrile from phenylmethanol using the necessary organic or inorganic reagents. Draw the structures of the compounds.arrow_forward
- Synthesize N-Methylcyclohexylamine from cyclohexanol using the necessary organic or inorganic reagents. Draw the structures of the compounds.arrow_forwardSynthesize N-Methylcyclohexylamine from cyclohexanol using the necessary organic or inorganic reagents. Draw the structures of the compounds.arrow_forwardIf possible, please provide the formula of the compound 3,3-dimethylbut-2-enal.arrow_forward
- Synthesize 1,4-dibromobenzene from acetanilide (N-phenylacetamide) using the necessary organic or inorganic reagents. Draw the structures of the compounds.arrow_forwardIndicate the products obtained by mixing (3-oxo-3-phenylpropyl)triphenylphosphonium bromide with sodium hydride.arrow_forwardWe mix N-ethyl-2-hexanamine with excess methyl iodide and followed by heating with aqueous Ag2O. Indicate the major products obtained.arrow_forward
- Indicate the products obtained by mixing acetophenone with iodine and NaOH.arrow_forwardIndicate the products obtained by mixing 2-Propanone and ethyllithium and performing a subsequent acid hydrolysis.arrow_forwardIndicate the products obtained if (E)-2-butenal and 3-oxo-butanenitrile are mixed with sodium ethoxide in ethanol.arrow_forward
- Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
- Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage LearningGeneral, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage Learning





