3. Combustion Analysis: A sample of a blue crystal was found at an industrial laundry facility outside of Albuquerque, NM. The only four elements possibly in the compound were determined to be C, H, N, and O. Complete combustion of a 0.6250 g sample of the unknown crystal with excess O2 produced 1.8546 g of CO2 and 0.5243 g of H2O. A separate analysis of a 0.8500 g sample of the blue crystal was found to produce 0.0465 g NH3. The molar mass of the substance was found to be about 310 g/mol. What is the molecular formula of the unknown crystal? Use online resources to determine the most likely common name for this chemical.

3. Combustion Analysis: A sample of a blue crystal was found at an industrial laundry facility outside of Albuquerque, NM. The only four elements possibly in the compound were determined to be C, H, N, and O. Complete combustion of a 0.6250 g sample of the unknown crystal with excess O2 produced 1.8546 g of CO2 and 0.5243 g of H2O. A separate analysis of a 0.8500 g sample of the blue crystal was found to produce 0.0465 g NH3. The molar mass of the substance was found to be about 310 g/mol. What is the molecular formula of the unknown crystal? Use online resources to determine the most likely common name for this chemical.

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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Question

3. Combustion Analysis: A sample of a blue crystal was found at an industrial laundry facility outside of Albuquerque, NM. The only
four elements possibly in the compound were determined to be C, H, N, and O. Complete combustion of a 0.6250 g sample of the
unknown crystal with excess O2 produced 1.8546 g of CO2 and 0.5243 g of H2O. A separate analysis of a 0.8500 g sample of the blue
crystal was found to produce 0.0465 g NH3. The molar mass of the substance was found to be about 310 g/mol. What is the molecular
formula of the unknown crystal? Use online resources to determine the most likely common name for this chemical.
4. Hydrated Compound: A hydrate of nickel(II) sulfate has the following formula: NİSO;•XH2O. The water in a 0.250 g sample of
the hydrate was driven off by heating. The remaining sample had a mass of 0.171 g. Find the number of waters of hydration (x) in the
hydrate.

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