Introductory Chemistry (6th Edition)
6th Edition
ISBN: 9780134302386
Author: Nivaldo J. Tro
Publisher: PEARSON
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Chapter 11, Problem 131QGW
A 14.22 g aluminum soda can reacts with hydrochloric acid to the reaction:
The hydrogen gas is collected by the displacement of water. What volume of hydrogen is collected if the external pressure is 749 mm Hg and the temperature is 31 °C, assuming that there is no water vapor present? What is the vapor pressure of water at this temperature? What volume do the hydrogen and water vapor occupy under these conditions?
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Gases produced by a chemical reaction can easily be collected over water. To determine the pressure of the dry gas, the vapor pressure of
he water at that temperature must be subtracted from the total pressure.
1) Consider the following reaction:
Mg(s) + 2 HCl(aq) →→→ MgCl₂(aq) + H₂(g)
The total pressure of gas collected over water 680.0 mmHg and the temperature is 25.5°C What is the pressure of hydrogen gas formed in mmHg?
mmHg
Pressure =
A student experimentally determines the gas law constant, R, by reacting a small piece of
magnesium with excess hydrochloric acid and then collecting the hydrogen gas over water
in a eudiometer. Based on experimentally collected data, the student calculates R to equal
L'atm
0.0832
mol·K
L'atm
Ideal gas law constant from literature: 0.08206
mol·K
(a) Determine the percent error for the student's R-value.
Percent error =|1.389
(b) For the statements below, identify the possible source(s) of error for this student's trial.
The student uses the barometric pressure for the lab to calculate R.
The student does not equilibrate the water levels within the eudiometer and the
beaker at the end of the reaction. The water level in the eudiometer is 1-inch
above the water level in the beaker.
The student does not clean the zinc metal with sand paper.
The student notices a large air bubble in the eudiometer after collecting the
hydrogen gas, but does not dislodge it.
Consider the reaction:
2 NO(g) + Br2(g) =2 NOBr(g)
A chemist placed 0.0322 mol of NO and 1.70 g of bromine (Br2) into a
sealed 1.00 L reaction vessel and then allowed the reaction to reach
equilibrium.
The pressure of the NOBR at equilibrium at 25.0°C is 0.444 bar. (R =
0.08314 L·bar/mol· K and MW of Br2 is 159.808 g/mol.)
Calculate the Kp.
Incorrect, 1 attempt remaining
Your submission:
Feedback:
Use PV=nRT to determine the initial
pressures of the reactants. You can
then determine the pressures of the
reactants equilibrium by subtracting
the pressure that reacted. Kp =
P(NOBr)*/P(NO)²*P(Br)2
43.8
%3D
Chapter 11 Solutions
Introductory Chemistry (6th Edition)
Ch. 11 - Prob. 1SAQCh. 11 - Prob. 2SAQCh. 11 - Prob. 3SAQCh. 11 - A 2.55-L gas sample in a cylinder with a freely...Ch. 11 - Prob. 5SAQCh. 11 - Prob. 6SAQCh. 11 - Prob. 7SAQCh. 11 - Prob. 8SAQCh. 11 - Prob. 9SAQCh. 11 - Prob. 10SAQ
Ch. 11 - Prob. 11SAQCh. 11 - Prob. 12SAQCh. 11 - Prob. 1ECh. 11 - Prob. 2ECh. 11 - Prob. 3ECh. 11 - Prob. 4ECh. 11 - Prob. 5ECh. 11 - Prob. 6ECh. 11 - Prob. 7ECh. 11 - Prob. 8ECh. 11 - Prob. 9ECh. 11 - Prob. 10ECh. 11 - Prob. 11ECh. 11 - Prob. 12ECh. 11 - Prob. 13ECh. 11 - Prob. 14ECh. 11 - Prob. 15ECh. 11 - Prob. 16ECh. 11 - Prob. 17ECh. 11 - Prob. 18ECh. 11 -
19. Why do deep-sea divers breathe a mixture of...Ch. 11 - Prob. 20ECh. 11 - Prob. 21ECh. 11 - Prob. 22ECh. 11 - Prob. 23ECh. 11 - Prob. 24ECh. 11 - Prob. 25ECh. 11 - Prob. 26ECh. 11 - Prob. 27ECh. 11 - Prob. 28ECh. 11 - Prob. 29ECh. 11 - Prob. 30ECh. 11 - Prob. 31ECh. 11 - Prob. 32ECh. 11 - Prob. 33ECh. 11 - Prob. 34ECh. 11 -
35. A snorkeler with a lung capacity of 6.3 L...Ch. 11 - Prob. 36ECh. 11 - Prob. 37ECh. 11 - Prob. 38ECh. 11 - Prob. 39ECh. 11 - Prob. 40ECh. 11 - Prob. 41ECh. 11 -
42. A syringe containing 1.55 mL of oxygen gas is...Ch. 11 - Prob. 43ECh. 11 - Prob. 44ECh. 11 - 45. A 0.12-mol sample of nitrogen gas occupies a...Ch. 11 - Prob. 46ECh. 11 - Prob. 47ECh. 11 - Prob. 48ECh. 11 - Prob. 49ECh. 11 - Prob. 50ECh. 11 - Prob. 51ECh. 11 - Prob. 52ECh. 11 - Prob. 53ECh. 11 - 54. A bag of potato chips contains 585 mL of air...Ch. 11 - Prob. 55ECh. 11 - Prob. 56ECh. 11 - Prob. 57ECh. 11 - Prob. 58ECh. 11 - Prob. 59ECh. 11 - Prob. 60ECh. 11 - Prob. 61ECh. 11 - Prob. 62ECh. 11 - A cylinder contains 11.8 L of air at a total...Ch. 11 - Prob. 64ECh. 11 - Prob. 65ECh. 11 - Prob. 66ECh. 11 - Prob. 67ECh. 11 - Prob. 68ECh. 11 - An experiment shows that a 248-mL gas sample has a...Ch. 11 - An experiment shows that a 113-mL gas sample has a...Ch. 11 - A sample of gas has a mass of 38.8 mg. Its volume...Ch. 11 -
72. A sample of gas has a mass of 555 g. Its...Ch. 11 - Prob. 73ECh. 11 - Prob. 74ECh. 11 - Prob. 75ECh. 11 - Prob. 76ECh. 11 - Prob. 77ECh. 11 - Prob. 78ECh. 11 - Prob. 79ECh. 11 - Prob. 80ECh. 11 - Prob. 81ECh. 11 - Prob. 82ECh. 11 - Prob. 83ECh. 11 - Prob. 84ECh. 11 - Prob. 85ECh. 11 - Prob. 86ECh. 11 - Prob. 87ECh. 11 - Prob. 88ECh. 11 - Prob. 89ECh. 11 - Prob. 90ECh. 11 - 91. can be synthesized by the reaction:
How many...Ch. 11 - Prob. 92ECh. 11 - 93. Nitrogen reacts with powdered aluminum...Ch. 11 - Sodium reacts with chlorine gas according to the...Ch. 11 - Prob. 95ECh. 11 -
96. Lithium reacts with nitrogen gas according to...Ch. 11 - How many grams of calcium are consumed when 156.8...Ch. 11 - Prob. 98ECh. 11 - Prob. 99ECh. 11 - Prob. 100ECh. 11 - The mass of an evacuated 255-mL flask is 143.187...Ch. 11 - Prob. 102ECh. 11 - Prob. 103ECh. 11 - Prob. 104ECh. 11 - Prob. 105ECh. 11 -
106. Consider the reaction:
If is collected...Ch. 11 - 107. How many grams of hydrogen are collected in a...Ch. 11 -
108. How many grams of oxygen are collected in a...Ch. 11 - The decomposition of a silver oxide sample forms...Ch. 11 - Prob. 110ECh. 11 - When hydrochloric acid is poured over a sample of...Ch. 11 - Prob. 112ECh. 11 -
113. Consider the reaction:
If 285.5 mL of is...Ch. 11 -
114. Consider the reaction:
If 88.6 L of ,...Ch. 11 - Consider the reaction for the synthesis of nitric...Ch. 11 - Consider the reaction for the production of NO2...Ch. 11 - Prob. 117ECh. 11 - Prob. 118ECh. 11 - Prob. 119ECh. 11 - Prob. 120ECh. 11 - Prob. 121ECh. 11 - Prob. 122ECh. 11 - Prob. 123ECh. 11 - Prob. 124ECh. 11 - Prob. 125ECh. 11 - Prob. 126ECh. 11 - Prob. 127ECh. 11 -
128. Aerosaol cans carry clear warnings against...Ch. 11 - Complete the table. Variables Related Name of Law...Ch. 11 -
130. A chemical reaction produces 10.4 g of ....Ch. 11 -
131. A 14.22 g aluminum soda can reacts with...Ch. 11 - Prob. 132DIA
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- What possible uses exist for the natural gas liquids that are removed from natural gas during its processing?arrow_forwardConsider the reaction: 2 NO(g) + Br2(g) =2 NOBI(g) A chemist placed 0.0322 mol of NO and 1.70 g of bromine (Br2) into a sealed 1.00 L reaction vessel and then allowed the reaction to reach equilibrium. The pressure of the NOBR at equilibrium at 25.0°C is 0.444 bar. (R = 0.08314 L·bar/mol·K and MW of Br2 is 159.808 g/mol.) Calculate the Kp.arrow_forwardA student experimentally determines the gas law constant, R, by reacting a small piece of magnesium with excess hydrochloric acid and then collecting the hydrogen gas over water in a eudiometer. Based L-atm on experimentally collected data, the student calculates R to equal 0.0832 mol·K L-atm Ideal gas law constant from literature: 0.08206 mol·K (a) Determine the percent error for the student's R-value. Percent error = % (b) For the statements below, identify the possible source(s) of error for this student's trial. The student notices a large air bubble in the eudiometer after collecting the hydrogen gas, but does not dislodge it. The student does not clean the zinc metal with sand paper. The student does not equilibrate the water levels within the eudiometer and the beaker at the end of the reaction. The water level in the eudiometer is 1-inch above the water level in the beaker. The student uses the barometric pressure for the lab to calculate R.arrow_forward
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