A) 22.5 L B) 40.0 L C) 5.63 L 5) A mixture of oxygen, nitrogen, and hydrogen gases exerts a total pressure of 85 kPa at ODC. The partial pressure of the oxygen is 20 kPa and the partial pressure of the nitrogen is 50 kPa. What is the partial pressure of the hydrogen gas in this mixture? D) 10.0 L A) 15 kPa B) 85 kPa 6) C) 50 kPa D) 20 kPa How many moles of gas occupy 22.4 liters at 27 C and 0.50 atm of pressure? [R = .082 Ldatm/moldk] %3D A) 0.25 B) 10.0 C)) 0.45 D) 2.2 5) aspartame, rounded to the ne. A) 24 B) 156 The molecular fo O=IS. 294 D) 43 E) 39

A) 22.5 L B) 40.0 L C) 5.63 L 5) A mixture of oxygen, nitrogen, and hydrogen gases exerts a total pressure of 85 kPa at ODC. The partial pressure of the oxygen is 20 kPa and the partial pressure of the nitrogen is 50 kPa. What is the partial pressure of the hydrogen gas in this mixture? D) 10.0 L A) 15 kPa B) 85 kPa 6) C) 50 kPa D) 20 kPa How many moles of gas occupy 22.4 liters at 27 C and 0.50 atm of pressure? [R = .082 Ldatm/moldk] %3D A) 0.25 B) 10.0 C)) 0.45 D) 2.2 5) aspartame, rounded to the ne. A) 24 B) 156 The molecular fo O=IS. 294 D) 43 E) 39

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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» Significant Figure Rules 01 >> 02 >> 03 >> 04 >> 05 >> All nonzero digits are significant. Zeros that appear between other nonzero digits are always significant. Zeros that appear in front of all of the nonzero digits are called left-end zeros. Left-end zeros are never significant. Zeros that appear after all nonzero digits are called right-end zeros. Right-end zeros in a number that locks a decimal point are not significant. ▬▬▬ 美銀銀時 ☐☐ Right-end zeros in a number with a decimal point are significant. This is true whether the zeros occur before or ofter the decimal point. 237 has three significant figures. 1.897 has four significant figures. 39,004 has five significant figures. 5.02 has three significant figures. 0.008 has one significant figure. 0.000416 has three significant figures. 140 has two significant figures. 75,210 has four significant figures. 620.0 has four significant figures. 19.000 has five significant figures. For multiplication and division problems, the answer…
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