A. True B. False C. Maybe D. Indefinite 14. If 2.8 moles of Propane reacts with excess Oxygen gas how many grams of CO2 will be formed? 1 C3H8 + 5O2 A. 244.4 g CO2 3CO2 + 4H20 В. 369.6 g CO2 C. 636.8 g CO2 D. 969. 8 g. CO2

A. True B. False C. Maybe D. Indefinite 14. If 2.8 moles of Propane reacts with excess Oxygen gas how many grams of CO2 will be formed? 1 C3H8 + 5O2 A. 244.4 g CO2 3CO2 + 4H20 В. 369.6 g CO2 C. 636.8 g CO2 D. 969. 8 g. CO2

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter11: Stoichiometry

Section: Chapter Questions

Problem 4STP

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Cyclopropane mixed in the proper ratio with oxygen can be used as an anesthetic. At 755 mm Hg and 25C, it has a density of 1.71 g/L. (a) What is the molar mass of cyclopropane? (b) Cyclopropane is made up of 85.7% C and 14.3% H. What is the molecular formula of cyclopropane?
Magnesium ribbon reacts with acid to produce hydro- gen gas and magnesium ions. Different masses of magnesium ribbon are added to 10 mL of the acid. The volume of the hydrogen gas obtained is a measure of the number of moles of hydrogen produced by the reaction. Various measurements are given in the table below. (a) Draw a graph of the results by plotting the mass of Mg versus the volume of the hydrogen gas. (b) What is the limiting reactant in experiment 1? (c) What is the limiting reactant in experiment 3? (d) What is the limiting reactant in experiment 6? (e) Which experiment uses stoichiometric amounts of each reactant? (f) What volume of gas would be obtained if 0.300 g of Mg ribbon were used? If 0.010 g were used?
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You have seven closed containers each with equal masses of chlorine gas (Cl2). You add 10.0 g of sodium to the first sample, 20.0 g of sodium to the second sample, and so on (adding 70.0 g of sodium to the seventh sample). Sodium and chloride react to form sodium chloride according to the equation :math>2Na(s)+Cl2(g)2NaCl(s) ter each reaction is complete, you collect and measure the amount of sodium chloride formed. A graph of your results is shown below. mg src=Images/HTML_99425-9-18ALQ_image001.jpg alt="" align="top"/> swer the following questions: l type='a'> Explain the shape of the graph. lculate the mass of NaClformed when 20.0 g of sodium is used.Calculate the mass of Cl2 , in each container. lculate the mass of NaClformed when 50.0 g of sodium is used. Identify the leftover reactant and determine its mass for parts b and d above.
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