Determine analysis: 52.2% C; 13.0 % H; 34.8 % O. 1 ( An organic compound witha molar mass of 116.2 g/mol was determined to have the following percent composition: 62.01 % C, 10.43 % H, 27.54% O. Determine the empirical formula and the molecular formula for the compound. Empirical formula Molecular formula 34 arnlynsioler/Deskton/lotry html X of XTZ

Determine analysis: 52.2% C; 13.0 % H; 34.8 % O. 1 ( An organic compound witha molar mass of 116.2 g/mol was determined to have the following percent composition: 62.01 % C, 10.43 % H, 27.54% O. Determine the empirical formula and the molecular formula for the compound. Empirical formula Molecular formula 34 arnlynsioler/Deskton/lotry html X of XTZ

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter3: Mass Relations In Chemistry; Stoichiometry

Section: Chapter Questions

Problem 84QAP: Suppose that the atomic mass of C-12 is taken to be 5.000 amu and that a mole is defined as the...

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Suppose that the atomic mass of C-12 is taken to be 5.000 amu and that a mole is defined as the number of atoms in 5.000 kg of carbon-12. How many atoms would there be in one mole under these conditions? (Hint: There are 6.0221023 C atoms in 12.00 g of C-12.)
89 A number of compounds containing the heavier noble gases, and especially xenon, have been prepared. One of these is xenon hexafluoride (XeF6), which can be prepared by heating a mixture of xenon and fluoride gases. XeF6 is a white crystalline solid at room temperature and melts at about 325 K. A mixture of 0.0600 g of Xe and 0.0304 g of F2 is sealed into a 100.0-mL bulb. (The bulb is heated, and the reaction goes to completion. Then the sealed bulb is cooled back to 20.0°C. What will be the final pressure in the bulb, expressed in torr?
itamin B12 , cyancobalamin, is essential for human nutrition. Its molecular formula is C63H88CoN14O14P . A lack of this vita min in the diet can lead to anemia. Cyanocohalamin is the form of the vitamin found in vitamin supplements. l type='a'> What is the molar mass of cyanocobalamin to two decimal places? How many moles of cyanocohalamin molecules are present in 250 mg of cyanocobalamin? What is the mass of 0.60 mole of cyanocobalamin? How many atoms of hydrogen are in 1 .0 mole of cyanocobalamin? What is the mass of 1.0107 molecules of cyanocobalamin? What is the mass (in grams) of one molecule of cyanocobalamin?
High-density lipoprotein (HDL) cholesterol is the good cholesterol because adequate levels reduce the risk of heart disease and stroke. HDL levels between 40. and 59 mg/dL are typical for a healthy individual. What is this range of HDL cholesterol in units of mol/L? The formula for cholesterol is C27H46O.
How are the molecular mass and the molar mass of a compound similar and how are they different?
What is true about the chemical properties of the product? a. The properties are more like chemical A. b. The properties are more like chemical B. c. The properties are an average of those of chemical A and chemical B. d. The properties are not necessarily like either chemical A or chemical B. e. The properties arc more like chemical A or more like chemical B, but more information is needed. Justify your choice, and for choices you did not pick, explain what is wrong with them.
The following chemical equation has NOT been balanced. H3PO4 + Ca(OH)2 --> Ca3(PO4)2 + H2O How many grams of calcium hydroxide are needed to produce 17.94 grams of water in significant figures?
The empirical formula for C6H12 is-
How could you calculate the Avogadro’s number [NA] for an organic compound if you know the following information: a. The volume of the molecule was calculated to be 0.664 x 10-21 cm3. b. The molar mass of the compound is 320.0 g/mole and the density is 0.8 g/ml.
56.172g of pure (elemental) Si is equivalent o how many moles of Si? A): 6.02 x 10^23 moles of Si b): 3 moles of Si c): 2 moles of Si d): 1 mole of Si
In 1997, at the United Nations Conference on Climate Change, the major industrial nations agreed to expand their re-search efforts to develop renewable sources of carbon-basedfuels. For more than a decade, Brazil has been engaged in aprogram to replace gasoline with ethanol derived from the rootcrop manioc (cassava).(a) Write separate balanced equations for the complete combus-tion of ethanol (C₂H₅OH) and of gasoline (represented by theformula C₈H₁₈).(b) What mass of oxygen is required to burn completely 1.00 Lof a mixture that is 90.0% gasoline (d=0.742 g/mL) and 10.0%ethanol (d=0.789 g/mL) by volume?(c) If 1.00 mol of O₂ occupies 22.4 L, what volume of O₂ isneeded to burn 1.00 L of the mixture?(d) Air is 20.9% O₂ by volume. What volume of air is needed toburn 1.00 L of the mixture?
Succinic acid is an important chemical used in the manufacture of polyesters and plasticizers. It contains only, C H, and O. Combustion of 58.76 mg succinic acid produces 87.60 mg CO2 and 26.90 mg H2O. If 0.390 mole of succinic acid has a mass of 46.1 g, determine the molecular formula for succinic acid. (Enter the elements in the order: C, H, O.) Molecular formula =