Physical Chemistry
2nd Edition
ISBN: 9781133958437
Author: Ball, David W. (david Warren), BAER, Tomas
Publisher: Wadsworth Cengage Learning,
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Chapter 1, Problem 1.25E
Interpretation Introduction
Interpretation:
In the reaction between hydrochloric acid and magnesium
100.0 g of HCl(aq) is reacted. The volume of H2 is produced if the temperature is 47.5 °C and the pressure is 1.02 atm is to be calculated. Assume the
Concept introduction:
The ideal gas law or general gas equation is the equation of state of a hypothetical ideal gas. Thought it has some limitations, it is a good approximation of the behavior of several gases under several conditions. The term was first coined by Emile Clapeyron in the year of 1834 as combination of other laws. The ideal gas law can be written as PV = nRT.
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Students have asked these similar questions
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
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.
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.
Jj.200.
Chapter 1 Solutions
Physical Chemistry
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