Chemistry
12th Edition
ISBN: 9780078021510
Author: Raymond Chang Dr., Kenneth Goldsby Professor
Publisher: McGraw-Hill Education
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Question
Chapter 5, Problem 5.71QP
Interpretation Introduction
Interpretation:
The number of grams of Sodium used in the given reaction has to be calculated.
Concept Introduction:
The ideal gas equation is:
Where,
P is the pressure
V is the volume
T is the temperature
R is molar gas constant
n is the mole
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Students have asked these similar questions
A metal cylinder with a capacity of 6.0 L is filled with compressed propane (C3H8). The pressure and temperature of the cylinder when it was initially filled were 120 atm and 75 ◦C, respectively. The molar mass of carbon is 12 g·mol−1 and the molar mass of hydrogen is 1 g·mol−1.
a) How many moles of propane are in the cylinder?
b) What is the mass of the propane inside the cylinder?
c) After some time, the cylinder and its contents cool to 25 ◦C. What is the pressure in the
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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.
Suppose you are performing
a gas-producing reaction to experimentally determine the molar volume of the gas.
MgCl₂ (aq) + H₂(g)
Mg(s) + 2 HCl(aq)
A sample of Mg produces 21.5 mL of H₂ gas. The gas is collected over water at an atmospheric pressure of 768.6 mm Hg at
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What is the experimental value for the molar volume of the hydrogen gas in L/mol?
Chapter 5 Solutions
Chemistry
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