Name:1. Which sample contains a total of 9.0 × 1023atoms?(1) 0.50 mole of HCI (3) 1.5 moles of Cu(2) 0.75 mole of H₂O (4) 1.5 moles of H₂2. What is the total number of nitrogen atomsin 0.25 mole of NO2 gas?(1) 1.5 x 1023(2) 6.0 x 1023(3) 3.0 x 1023(4) 1.2 x 10243. What is the total number of neon atomscontained in 20.2 grams of neon gas?(1) 1.01 x 1024(2) 2.02 x 1024(3) 3.01 x 1023(4) 6.02 x 1023Practice4. Which sample contains a total of 6.0 x 1023atoms?(1) 23 g Na(2) 24 g C(3) 42 g Kr(4) 78 g K5. The number of atoms in 10. grams ofcalcium is equal to 6.0 x 1023 multiplied by(1) 0.25(3) 10.(4) 40.(2) 0.506. How many molecules are contained in 127grams of iodine (1₂)?(1) 1.50 x 1023(2) 3.01 x 1023(3) 9.03 x 1023(4) 12.4 x 10237. What is the total number of moleculesof SO₂ in a 0.10-mole sample of SO₂?(1) 6.0 × 1021(2) 6.0 × 1022(3) 6.0 x 1023(4) 6.0 x 1024Quantities of Matter8. What is the total volume occupied by 132grams of CO₂(g) at STP?(1) 22.4 L(2) 33.6 L(3) 44.8 L(4) 67.2 L9. At STP, 3 x 1023 molecules ofoccupy the same volume as(1) 1 mole of H₂(g)(2) 6 x 1023 molecules of H₂(g)(3) 0.5 mole of H₂(g)(4) 4 grams of H₂(g)10. What is the volume, in liters, of 576 gramsof SO₂ gas at STP?(1) 101(2) 202(3) 216(4) 788SO₂(g)11. At STP, what is the total volume occupiedby a 2.00-gram sample of H₂(g)?(1) 1.00 L(2) 2.00 LPage 18(3) 11.2 L(4) 22.4 L12. The volume occupied by 9.03 × 1023molecules of N₂ gas at STP is closest to(1) 0.500 liter(3) 22.4 liters(4) 33.6 liters(2) 1.50 liters13. Which contains the same number ofmolecules as 22.4 liters of N₂ at STP?(1) 8.00 grams of oxygen(2) 20.0 grams of argon(3) 10.0 grams of nitrogen(4) 4.00 grams of helium14. What is the total volume, in liters, occupiedby 56.0 grams of nitrogen gas at STP?(1) 11.2(3) 33.6(4) 44.8(2) 22.415. The mass of 11.2 liters of a gas is20. grams at STP. What is the massof 6.02 x 1023 molecules of this gas?(1) 10. g(3) 40. g(2) 20. g(4) 80. g

Answered: Image /qna-images/answer/1c790cd7-4f20-435a-a676-14b8826d6d40.jpg

1. Which sample contains a total of 9.0 x 1023 atoms? (1) 0.50 mole of HCI (3) 1.5 moles of Cu (2) 0.75 mole of H₂O (4) 1.5 moles of H₂ 2. What is the total number of nitrogen atoms in 0.25 mole of NO₂ gas? (1) 1.5 x 1023 (2) 6.0 x 1023 (3) 3.0 x 1023 (4) 1.2 x 1024 3. What is the total number of neon atoms contained in 20.2 grams of neon gas? (1) 1.01 x 1024 (2) 2.02 x 1024 (3) 3.01 x 1023 (4) 6.02 x 1023 35

1. Which sample contains a total of 9.0 x 1023 atoms? (1) 0.50 mole of HCI (3) 1.5 moles of Cu (2) 0.75 mole of H₂O (4) 1.5 moles of H₂ 2. What is the total number of nitrogen atoms in 0.25 mole of NO₂ gas? (1) 1.5 x 1023 (2) 6.0 x 1023 (3) 3.0 x 1023 (4) 1.2 x 1024 3. What is the total number of neon atoms contained in 20.2 grams of neon gas? (1) 1.01 x 1024 (2) 2.02 x 1024 (3) 3.01 x 1023 (4) 6.02 x 1023 35

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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