Concept explainers
Fluoxetine, marketed as an antidepressant under the nameProzac, can be represented by the following ball-and-stick molecular model. Write the molecular formula for fluoxetine,and calculate its molecular weight.
Want to see the full answer?
Check out a sample textbook solutionChapter 3 Solutions
CHEMISTRY-MOD.MASTERING (18W)
- Chlorine exists mainly as two isotopes, 37Cl and 33Cl. Which is more abundant? How do you know?arrow_forwardExpress the composition of each of the following compounds as the mass percents of its elements. a. formaldehyde, CH2O b. glucose, C6H12O6 c. acetic acid, HC2H3O2arrow_forward4-102 Aspartame, an artificial sweetener used as a sugar substitute in some foods and beverages, has the molecular formula C14H18N2O5. (a) How many mg of aspartame are present in 3.72 × 1026 molecules of aspartame? (b) Imagine you obtain 25.0 mL of aspartame, which is known to have a density of 1.35 g/mL. How many molecules of aspartame are present in this volume? (c) How many hydrogen atoms are present in 1.00 mg of aspartame? (d) Complete the skeletal structure of aspartame, where all the bonded atoms are shown but double bonds, triple bonds, and/or lone pairs are missing. (e) Identify the various types of geometries present in each central atom of aspartame using VSEPR theory. (f) Determine the various relative bond angles associated with each central atom of aspartame using VSEPR theory. (g) What is the most polar bond in aspartame? (h) Would you predict aspartame to be polar or nonpolar? (i) Is aspartame expected to possess resonance? Explain why or why not. (j) Consider the combustion of aspartame, which results in formation of NO2(g) as well as other expected products. Write a balanced chemical equation for this reaction. (k) Calculate the weight of C02(g) that can be prepared from 1.62 g of aspartame mixed with 2.11 g of oxygen gas.arrow_forward
- Morphine, a narcotic substance obtained from opium, has the molecular formula C17H19NO3. What is the mass percentage of each element in morphine (to three significant figures)?arrow_forwardGallium arsenide, GaAs, has gained widespread use in semiconductor devices that convert light and electrical signals in fiber-optic communications systems. Gallium consists of 60.% 69Ga and 40.% 71Ga. Arsenic has only one naturally occurring isotope, 75As. Gallium arsenide is a polymeric material, but its mass spectrum shows fragments with the formulas GaAs and Ga2As2. What would the distribution of peaks look like for these two fragments?arrow_forwardChalky, white crystals in mineral collections are often labeled borax, which has the molecular formula Na2B4O7 10H2O, when actually they are partially dehydrated samples with the molecular formula Na2B4O7 5H2O, which is more stable under the storage conditions. Real crystals of borax are colorless and transparent. (a) Calculate the percent mass that the mineral has lost when it partially dehydrates. (b) Is the percent boron by mass the same in both compounds?arrow_forward
- In an experiment 0.500 gg of copper reacted with oxygen to give 0.563 gg of copper oxide. What is the empirical formula of the oxide? Calculate the number of carbon atoms in 1.27 gg of table sugar, C12H22O11C12H22O11. Calculate the volume in milliliters occupied by one molecule of butyl alcohol, C4H9OHC4H9OH, in a beaker of alcohol. The density of butyl alcohol is 0.809 g/mLg/mL .arrow_forwardThe molecular formula for caffeine, one of the key compounds found in coffee and tea, is C8H10N4O2. (i) How do I calculate the percent mass of each of the elements in caffeine.arrow_forwardCodeine, a narcotic drug used to treat cough, has an empirical formula of C18H21NO3. What is the molecular formula of codeine if its molar mass is 299g/mol? (C=12.01, H=1.008, N=14.00, O=16.00)arrow_forward
- Your doctor has diagnosed you as being anemic—that is, as having too little iron in your blood. At the drugstore, you find two iron-containing dietary supplements: one with iron(II) sulfate, FeSO4, and the other with iron(II) gluconate, Fe(C6H11O7)2. If you take 100. mg of each compound, which will deliver more atoms of iron? (a) What are the molecular weights of the two compounds? (b) How many moles of each compound are contained in 100. mg? (c) How many moles of Fe are in one mole of the compound? (d) If you take 100. mg of each compound, which will deliver more atoms of iron?arrow_forwardChlorophyll molecules are responsible for the green pigmentation of plants. Differing chemically isolated molecular chlorophyll compounds are named as "Chlorophyll X" (where "X" is a variable denoting the actual molecular fragments which are represented by the labels R2, R3, R7, Rg, R17). Suppose one molecule of ChlorophyllX contains 5 oxygen atoms, and Chlorophyll X is 13.14 % oxygen by weight. Using only this information and the atomic mass of oxygen, determine the molecular mass of Chlorophyll X. The Chlorophyll X molecule contains one magnesium atom. What mass of magnesium is found in 7.11 g of Chlorophyll X compound?arrow_forwardHow many chloride atoms are in 32.3 g of CaCl2? write the answer in this format 1.00x10^1 unit Cl What is the mass percent carbon in benzoic acid, C6H5COOH?arrow_forward
- General Chemistry - Standalone book (MindTap Cour...ChemistryISBN:9781305580343Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; DarrellPublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage LearningChemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning