Lupulon is an organic chemical having the following percent composition by mass: 75.32 % C, 9.24 % H, and 15.44 % O. Based on your previous three answers (assuming a 100.0-g sample), calculate its empirical formula. Provide the correct number of each of the following elements in the empirical formula: C 12 H 18 0 2 Answer 1: 12 Answer 2: 18 Answer 3:

Lupulon is an organic chemical having the following percent composition by mass: 75.32 % C, 9.24 % H, and 15.44 % O. Based on your previous three answers (assuming a 100.0-g sample), calculate its empirical formula. Provide the correct number of each of the following elements in the empirical formula: C 12 H 18 0 2 Answer 1: 12 Answer 2: 18 Answer 3:

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

See similar textbooks

Similar questions

S + 6 HNO3 --> H₂SO4 + 6 NO2 + 2H₂O In the above equation how many grams of water can be made when 2 grams of HNO3 are consumed? Use the following molar masses. If you do not use these masses, the computer will mark your answer incorrect.: Molar Element Mass Hydrogen 1 Nitrogen 14 Sulfur 32 Oxygen 16
Can you help me to write the label of the units for the moles, molar mass, molecules, and grams?
I need help with part C
Brasses are alloys in which copper is the primary component and zinc is the second most abundant element. Naval brass, which has a high resistance to salt corrosion is 60.0% Cu, 39.25% Zn, and 0.75% Sn. How many moles of zinc are present in a 72.1 gram sample of naval brass? Report your answer with three significant figures.
An unknown compound contains only CC , HH , and OO . Combustion of 8.60 g8.60 g of this compound produced 17.2 g17.2 g CO2CO2 and 7.03 g7.03 g H2OH2O . What is the empirical formula of the unknown compound? Insert subscripts as needed.
The combustion of ammonia in the presence of excess oxygen yields NO2 and H2O: 4 NH3 (g) + 7 02 (g) 4 NO2 (g) + 6 H2O The combustion of 28.8 g of ammonia g of oxygen. consumes Atomic Mass: N 14.007 н 1.008 16.00 Select the correct response: 15.5 94.7 28.8 30.9 54.1
Calculate the number of molecules of a sample of C,FaCla containing 38.0 grams of fluorine atom. Avogadro's number = 6.022 x 1023 particles/mole %3! 1 amu = 1.66 x 10 24 g In order to receive full credit, you must use dimensional analysis, show all your work, including the unrounded number, vertical dashed line, and rounded number with the correct number of significant figure and unit.
What is the empirical formula of the following compound if a sample contains 55.3% K, 14.6% P and 30.1% O by mass? O K3P203 (all numbers are subscripts) K3PO4 (all numbers are subscripts) O K2(PO3)2 (all numbers are subscripts) KPO (all numbers are subscripts) K2PO2 (all numbers are subscripts) O O
A certain compound contains 40.0% carbon, 6.71% hydrogen, and 53.3% oxygen by mass. If a 0.320-mole sample weighs 28.8 g, what is the molecular formula of this compound? Your answer (Enter 1 if the subscript is 1): C H Give the empirical formula of an oxide of lead that contains 90.65% Pb. Your answer (Enter 1 if the subscript is 1): Pb 0 If a sample of urea, CH4N₂O, is 84% pure, what is the percent by mass of nitrogen in this sample assuming that there is no nitrogen in the impurities? Your answer:
= O CHEMICAL REACTIONS Combustion analysis 150 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have a molecular molar mass of 44 g/mol, is burned completely in excess oxygen, and the mass of the products carefully measured: product carbon dioxide mass 4.50 B 2.468 Use this information to find the molecular formula of X D X Alina