O Emmaree Hernandez - Mole R X How to Calculate Molar Mass O Unit 4 Test Choice Boarc X A IN CLASS ASSIGNMENT FOR 1 X A goformative.com/formatives/6021509f9fbcc1919474d934 4 7. 8 9 10 5.717 grams H2 9 In the reaction: N, + 3H, 2NH, what is the mole ratio of hydrogen to nitrogen? 3. O3:2 1:1 1:2 О 3:1

O Emmaree Hernandez - Mole R X How to Calculate Molar Mass O Unit 4 Test Choice Boarc X A IN CLASS ASSIGNMENT FOR 1 X A goformative.com/formatives/6021509f9fbcc1919474d934 4 7. 8 9 10 5.717 grams H2 9 In the reaction: N, + 3H, 2NH, what is the mole ratio of hydrogen to nitrogen? 3. O3:2 1:1 1:2 О 3:1

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter8: Chemical Composition

Section: Chapter Questions

Problem 133CP

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A sample of a compund made entirely from copper and oxygen was founf to have a total mass of 0.1431g. The mass of the copper om the compound eas found to be 0.1271g.(i)Calculate the mas of oxygen in the sample. (ii)Calculate the number of moles of oxygen in the sample. (iii) Use the mole ratio of copper to oxygen rounded off to the nearest whole nmber to determine both the formula and the molar mass of the compound.
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