Chemistry
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Concept explainers

Ideal and Real Gases
Ideal gases obey conditions of the general gas laws under all states of pressure and temperature. Ideal gases are also named perfect gases. The attributes of ideal gases are as follows,
Gas Laws
Gas laws describe the ways in which volume, temperature, pressure, and other conditions correlate when matter is in a gaseous state. The very first observations about the physical properties of gases was made by Robert Boyle in 1662. Later discoveries we…
Gaseous State
It is well known that matter exists in different forms in our surroundings. There are five known states of matter, such as solids, gases, liquids, plasma and Bose-Einstein condensate. The last two are known newly in the recent days. Thus, the detailed fo…
Question

. A student is taking General Chemistry Lab this semester. In a experiment, instead of reacting Mg with HCl, he is supposed to react zinc (Zn) with HCl and perform a similar experiment. He reacted a 0.063g sample of zinc with excess 1 M HCl at 24 degrees Celsius (both lab and water temperature). The reaction produced a gas that expanded to a volume of 25.0 mL. The atmospheric pressure was 760 mmHg on the day he performed the experiment.

a. Write the balanced equation for this reaction.

b. What is the pressure (in atm) of the H2 gas that was produced?      Remember to take into account the vapor pressure of water.

c. What is the temperature in Kelvin?

d. How many moles of H2 should you produce with this amount of starting material?

e. Using the P, V, T, and n listed above, solve for your experimentally determined value of the Ideal Gas Constant, R.

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