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5. When propane gas burns, it reacts with oxygen to yield carbon dioxide and water. 1 mole C3Hs+ moles 0₂ → moles CO2 + moles H₂0 3 C 100 8 H - 3 C = 100 8 H

5. When propane gas burns, it reacts with oxygen to yield carbon dioxide and water. 1 mole C3Hs+ moles 0₂ → moles CO2 + moles H₂0 3 C 100 8 H - 3 C = 100 8 H

Chemistry: An Atoms First Approach
Chemistry: An Atoms First Approach
2nd Edition
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Steven S. Zumdahl, Susan A. Zumdahl
Chapter5: Stoichiometry
Section: Chapter Questions
Problem 16ALQ: Consider the equation 2A + B . A2B. If you mix 1.0 mole of A with 1.0 mole of B, what amount (moles)...
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Faith Academy Chemistry A Wk7 mod3 1103-5 Moles 18. How many units are in sample 1? 19. What is the formula for sample 1 which has one bolt and two nuts? 20. If you had one mole of sample #1, how many units would you have? 21. The formula for sample #3 is B₂NW4. Sample #3 has more mass than sample #1. If the mass of one mole of B = 100, one mole of N = 175, and one mole of W=24, what would be the mass of one mole of sample #3, B₂NW4? a. 194 g/mole b. 471 g/mole Multiple choice 22. Ping pong balls and golf balls are used to represent gas molecules with different masses and velocities. Imagine a ping pong ball is hit by a stretched rubber band and moves at a certain velocity. When a golf ball is hit by the stretched rubber band, the heavy golf ball's velocity will be a. slower b. the same as the ping pong ball 23. To convert from grams to moles for any atom or molecule, you look on the periodic table and find the for all elements involved. a. atomic number b. atomic mass c. element number d. ionic charge b. one mole c. 22.4 liters for gas c. 6.022 x 10^23 381 g/mole d. 24. Which statement is NOT true about Avogadro's number? (p40-41) a. 6.02 x 1023 particles c. faster = page 3 of 6 10 O 8 H d. varies with mass and velocity of atoms Matching Conservation of Mass (1103 p46-52) Select the least amount of moles necessary for the reaction to take place (#25-28). List the reactant elements on one side and the products on the other. According to conservation of mass, both sides must have equal numbers of each element. Balance oxygen and hydrogen last. c. 5, 3, 4 d. 2, 1, 2 e. not given a. 1, 1, 2 b. 2, 1, 1 e. 1 mole = atomic mass expressed in grams ae. N is symbol for number of objects in one mole 25. When propane gas burns, it reacts with oxygen to yield carbon dioxide and water. 1 mole C3H8+ moles 0₂ → moles H₂0 moles CO₂ + 3 C 3 C 100 8 H
Transcribed Image Text:Faith Academy Chemistry A Wk7 mod3 1103-5 Moles 18. How many units are in sample 1? 19. What is the formula for sample 1 which has one bolt and two nuts? 20. If you had one mole of sample #1, how many units would you have? 21. The formula for sample #3 is B₂NW4. Sample #3 has more mass than sample #1. If the mass of one mole of B = 100, one mole of N = 175, and one mole of W=24, what would be the mass of one mole of sample #3, B₂NW4? a. 194 g/mole b. 471 g/mole Multiple choice 22. Ping pong balls and golf balls are used to represent gas molecules with different masses and velocities. Imagine a ping pong ball is hit by a stretched rubber band and moves at a certain velocity. When a golf ball is hit by the stretched rubber band, the heavy golf ball's velocity will be a. slower b. the same as the ping pong ball 23. To convert from grams to moles for any atom or molecule, you look on the periodic table and find the for all elements involved. a. atomic number b. atomic mass c. element number d. ionic charge b. one mole c. 22.4 liters for gas c. 6.022 x 10^23 381 g/mole d. 24. Which statement is NOT true about Avogadro's number? (p40-41) a. 6.02 x 1023 particles c. faster = page 3 of 6 10 O 8 H d. varies with mass and velocity of atoms Matching Conservation of Mass (1103 p46-52) Select the least amount of moles necessary for the reaction to take place (#25-28). List the reactant elements on one side and the products on the other. According to conservation of mass, both sides must have equal numbers of each element. Balance oxygen and hydrogen last. c. 5, 3, 4 d. 2, 1, 2 e. not given a. 1, 1, 2 b. 2, 1, 1 e. 1 mole = atomic mass expressed in grams ae. N is symbol for number of objects in one mole 25. When propane gas burns, it reacts with oxygen to yield carbon dioxide and water. 1 mole C3H8+ moles 0₂ → moles H₂0 moles CO₂ + 3 C 3 C 100 8 H
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