
Interpretation :
The experimental evidence about a new compound that must be known before its formula must be explained.
Concept Introduction :
Empirical formula of a molecule is the smallest unit which is repeated in the molecule.
Molecular formula of a compound is the representation of the molecule with the number of different atoms present in the molecule.

Answer to Problem 31A
To determine the formula of a new compound the amount of different atoms present in the compound must be known or its empirical formula must be known.
Explanation of Solution
If quantitative estimation of a new compound is done after the qualitative estimation then what are the different elements present in the compound will be known along with the percentages of those elements. From this mole ratio of all the constituent elements and smallest mole ratio will be known. This will give empirical formula. Then molecular formula can be found from the empirical formula using the following relationship.
Molecular formula
To determine the formula of a new compound the percentage composition of all the constituent elements and molecular weight or vapor density must be known.
Chapter 6 Solutions
World of Chemistry
- Nucleophilic Aromatic Substitution 22.30 Predict all possible products formed from the following nucleophilic substitution reactions. (a) (b) 9 1. NaOH 2. HCI, H₂O CI NH₁(!) +NaNH, -33°C 1. NaOH 2. HCl, H₂Oarrow_forwardSyntheses 22.35 Show how to convert toluene to these compounds. (a) -CH,Br (b) Br- -CH3 22.36 Show how to prepare each compound from 1-phenyl-1-propanone. 1-Phenyl-1-propanone ہتی. Br. (b) Br (racemic) 22.37 Show how to convert ethyl benzene to (a) 2,5-dichlorobenzoic acid and (b) 2,4-dichlorobenzoic acid. 22.38 Show reagents and conditions to bring about the following conversions. (a) 9 NH2 8 CO₂H NH2 CO₂Et (d) NO2 NH2 S NH₂ NO2 CHS CHarrow_forwardive the major organic product(s) of each of the following reactions or sequences of reactions. Show all rant stereochemistry. [10 only] A. B. NaN3 1. LiAlH4, ether Br 2. H₂O CH3 HNO3 H₂/Pt H₂SO ethanol C. 0 0 CH3CC1 NaOH NHCCH AICI H₂O . NH₂ CH3CH2 N CH2CH3 + HCI CH₂CH 3 1. LIAIH, THE 2. H₂Oarrow_forward
- Calculate the stoichiometric amount of CaCl2 needed to convert all of the CuSO4 into CuCl2.arrow_forwardH CH تنی Cl 1. NaCN, DMF 2. LIAIH4, ether H₂O pyridine N NH₂ 5 CH H 1 HNO, H₂SO 2. Nal NH2 Br Br HNO₂ CuCl H₂SO HCI CH3 H3C NN HSO KCN CuCN 1. HNO₂, H₂SO O₂N NH2 2. OH ཀ་ལས། །ས་ཅན་ :i་དེ་མ་མ་སེ་ NH₂ CH3 1. HNO₂, H₂SO4 2. H3PO₂ 1 HNO2, H2SO4 2. Nalarrow_forwardive the major organic product(s) of each of the following reactions or sequences of reactions. Show all rant stereochemistry. [10 only] A. B. NaN3 1. LiAlH4, ether Br 2. H₂O CH3 HNO3 H₂/Pt H₂SO ethanol C. 0 0 CH3CC1 NaOH NHCCH AICI H₂O . NH₂ CH3CH2 N CH2CH3 + HCI CH₂CH 3 1. LIAIH, THE 2. H₂Oarrow_forward
- If a pharmacy chain sold 65 million 500-mg tablets of aspirin, how many US tons of aspirin does this represent? Report your answer to 2 significant figures.arrow_forwardHere are the options: reducing a monosaccharide a non reducing disaccharide amylopectin cellulose 1,4' beta- glycosidearrow_forwardRefer to the monosaccharides below to answer each of the following questions: CH2OH CHO CH₂OH CHZOH 0 H OH 0 0 HO H H OH HO H HO H H OH HO H CHZOH H OH HO H HO H CHZOH CHZOH CH3 a Sorbose b. Rhamnose c. Erythrulose d. Xylulose Classify each sugar by type; for example, glucose is an aldohexose. A. Xylulose is B. Erythrulose is C. Sorbose is D. Rhamnose isarrow_forward
- Refer to the sugars below to answer the following questions. Choose the sugar that best fits each escription and place the letter of the sugar in the blank to the left of the description. There is only one orrect answer for each question, but sugars may be used more than once. CH₂OH 0 CHO HO H CHO CH₂OH HO H HO H HO H H OH HH OH OH H OH H OH HO H CH₂OH H OH CH₂OH CH₂OH CH₂OH a (-)-tagatose b. (+) gulose c. (-)-erythrose d (-)-n bulos A. ARCD a D-ketohexose B. C. D. oxidizes to an optically inactive aldaric acid a dextrorotary hexose a ketose with two chirality centersarrow_forwardDraw the structure of the aldol, self condensation product for each of the following compounds if a compound does not undergo aldol self condensation explain why it does notarrow_forwardShow how each of the following transformations might be best accomplished. More than one step may required. Show all reagents and all intermediate structures. [4 only] CH3 A. CH CH2 C Br CH3 B OH only source of carbon CH3 CH CH2 C NHz CH 3 Harrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY





