Answered: A compound was discovered whose…

A compound was discovered whose composition by mass is 85.6% C and 14.4% H. Which of these formulas could be the molecular formula of this compound? Multiple Choice C2H6 C3H8 C3H4

Chemistry In Focus

7th Edition

ISBN:9781337399692

Author:Tro, Nivaldo J.

Publisher:Tro, Nivaldo J.

Chapter4: Molecules, Compounds, And Chemical Reactions

Section: Chapter Questions

Problem 32E: The formula mass of an unknown compound containing only C and H is 70.1 amu. What is its molecular...

See similar textbooks

Similar questions

A compound associated with the odor of garlic on a persons breath has the chemical formula CyH8S and a formula mass of 88.19 amu. What number does y stand for in the chemical formula of the compound?
An element X bas five major isotopes, which are listed below along with their abundances. What is the element? Isotope Percent Natural Abundance Mass (u) 46x 8.00% 45.95232 47x 7.30% 46.951764 48x 73.80% 47.947947 49x 5.50% 48.947841 50x 5.40% 49.944792
By x-ray diffraction it is possible to determine the geometric pattern in which atoms are arranged in a crystal and the distances between atoms. In a crystal of silver, four atoms effectively occupy the volume of a cube 0.409 nm on an edge. Taking the density of silver to be 10.5 g/cm3, calculate the number of atoms in one mole of silver.
Boron consists of two isotopes, 10B and 11B. Chlorine also has two isotopes, 35Cl and 37Cl. Consider the mass spectrum of BC13. How many peaks would be present, and what approximate mass would each peak correspond to in the BCl3 mass spectrum?
Malic acid, an organic acid found in apples, contains C, H, and O in the following ratios: C1H1.50O1.25 What is the empirical formula of malic acid?
The mass spectrum of CH3Cl is illustrated here. You know that carbon has two stable isotopes, and 13C with relative abundances of 98.9% and 1.1%, respectively, and chlorine has two isotopes, 35a and 37CI with abundances of 75.77% and 24.23%, respectively. (a) What molecular species gives rise to the lines at m/Z of 50 and 52? Why is the line at 52 about 1/3 the height of the line at 50? (b) What species might be responsible for the line at m/Z = 51?
The mass spectrum of bromine (Br2) consists of three peaks with the following characteristics: Mass (u) Relative Size 157.84 0.2534 159.84 0.5000 161.84 0.2466 How do you interpret these data?
Saccharin is the active ingredient in many sweeteners used today. It is made up of carbon, hydrogen, oxygen, sulfur, and nitrogen. When 7.500 g of saccharin are burned in oxygen, 12.6 g CO2, 1.84 g H2O, and 2.62 g SO2 are obtained. Another experiment using the same mass of sample (7.500 g) shows that saccharin has 7.65% N. What is the simplest formula for saccharin?
There are five hydrocarbon compounds (compounds of C and II) that have the formula C6H14. (These are isomers; they differ in the way that C and H atoms are attached. Chapter 23) All are liquids at room temperature but have slightly different densities. (a) You have a pure sample of one of these hydrocarbons, and to identify it you decide to measure its density. You determine that a 5.0-mL sample (measured in a graduated cylinder) has a mass of 3.2745 g (measured on an analytical balance). Assume that the accuracy of the values for mass and volume is plus or minus one ( 1) in the last significant figure. What is the density of the liquid? (b) Can you identify the unknown hydrocarbon based on your experiment? (c) Can you eliminate any of the five possibilities based on the data? If so, which one(s)? (d) You need a more accurate volume measurement to solve this problem, and you redetermine the volume to be 4.93 mL Based on this new informationwhat is the unknown compound?
The element bromine is Br2, so the mass of a Br2 molecule is the sum of the mass of its two atoms. Bromine has two isotopes. The mass spectrum of Br2 produces three peaks with relative masses of 157.836, 159.834, and 161.832, and relative heights of 6.337, 12.499. and 6.164, respectively. (a) What isotopes of bromine are present in each of the three peaks? (b) What is the mass of each bromine isotope? (c) What is the average atomic mass of bromine? (d) What is the abundance of each of the two bromine isotopes?
The formula mass of an unknown compound containing only C and H is 70.1 amu. What is its molecular formula?
ab and Mastering 3 F1 2 F2 W Benadryl is an over-the-counter drug used to treat allergy symptoms. The formula of Benadryl is C17H₂1 NO. You may want to reference (Pages 217-220) Section 7.1 while completing this problem. #3 80 F3 E b My Questions | bartleby. $ 4 090 000 F4 R % 5 F5 openvellum.ecollege.com T ^ 6 How many moles of C are present in 0.732 moles of Benadryl? Express your answer to three significant figures and include the appropriate units Value Part B Submit Request Answer HÅ Submit Part C Value F6 μA How many moles of H are present in 2.35 moles of Benadryl? Express your answer to three significant figures and include the appropriate units Y MacBook Air E Course Home 1 P Pearson Copyright © 2022 Pearson Education Inc. All rights reserved. | Terms of Use | Privacy Policy | Permissions | Contact Us | & 7 Units Request Answer ଏ F7 U Units How many moles of N are present in 1.62 moles of Benadryl? Express your answer to three significant figures and include the appropriate…