A 38.40 mg sample of an organic acid composed of just carbon, hydrogen, and oxygen was...

A 38.40 mg sample of an organic acid composed of just carbon, hydrogen, and oxygen was burned in pure oxygen to give 37.54 mg CO2 and 7.684 mg H2O in a combustion analysis. In a separate experiment, the molecular mass was determined to be 90. In a titration, 40.2 mg of the acid dissolved in 50 mL of water required 14.28 mL of 0.0625 M NaOH for complete neutralization. Use these data to draw a reasonable Lewis structure for the compound.

Determine the empirical formula of the compound using the combustion analysis data.

Expert Solution

queen_honey_blossom answered 1 year ago

A 33.153 mg sample of a chemical known to contain only carbon, hydrogen, sulfur, and oxygen...

A 33.153 mg sample of a chemical known to contain only carbon, hydrogen, sulfur, and oxygen is put into a combustion analysis apparatus, yielding 59.060 mg of carbon dioxide and 24.176 mg of water. In another experiment, 21.223 mg of the compound is reacted with excess oxygen to produce 9.1726 mg of sulfur dioxide. Add subscripts below to correctly identify the empirical formula of this compound (use this order of elements: CHSO)

the compound dimethyl phthalate, used in insects repellants, is composed of carbon, hydrogen, and oxygen and...

the compound dimethyl phthalate, used in insects repellants, is composed of carbon, hydrogen, and oxygen and has a molar mass of 194.2 g/mol. A 0.2572 g sample of the compound was burned in a combustion apparatus and 0.583 g of CO2 and 0.119 g of H2O were collected. What is the molecular formula of dimethyl phthalate?

An organic compound contains carbon, hydrogen, and sulfur. A sample of it with a mass of...

An organic compound contains carbon, hydrogen, and sulfur. A sample of it with a mass of 2.712 g was burned in oxygen to give gaseous CO2, H2O, and SO2. These gases were passed through 311.2 mL of an acidified 0.0200 M KMnO4 solution, which caused the SO2 to be oxidized to SO42-. Only part of the available KMnO4 was reduced to Mn2+. Next, 31.12 mL of 0.0300 M SnCl2 was added to 31.12 mL portion of this solution, which still...

Fumaric acid is an organic compound composed of 41.39%C , 3.47% H, and the rest oxygen....

Fumaric acid is an organic compound composed of 41.39%C , 3.47% H, and the rest oxygen. If 0.145 mole of fumaric acid has a mass of 16.8 g, what are the empirical and molecular fomulas of fumaric acid? Empirical formula: Molecular formula:

Arachidic acid is an organic compound composed of 76.86% C, 12.90% H, and the rest oxygen....

Arachidic acid is an organic compound composed of 76.86% C, 12.90% H, and the rest oxygen. If 0.297 mol of arachidic acid has a mass of 92.8 g, what are the empirical and molecular formulas of arachidic acid?

A compound contains only carbon, hydrogen, and oxygen. Combustion of 21.16 mg of the compound yields...

A compound contains only carbon, hydrogen, and oxygen. Combustion of 21.16 mg of the compound yields 48.04 mg of CO2 and 16.4 mg of H2O. The molecular weight of the compound is 114.1g/mole. What are the empirical and molecular formulas of the compound.

A scientist is studying a monoprotic carboxylic acid that consists of only carbon, hydrogen, and oxygen....

A scientist is studying a monoprotic carboxylic acid that consists of only carbon, hydrogen, and oxygen. From a titration he finds that 13.4 mL of a 0.250 M sodium hydroxide solution are required to neutralize 0.5303 grams of the carboxylic acid. From a combustion experiment he finds that 2.982 grams of the carboxylic acid yields 0.9835 grams of carbon dioxide and 4.80 grams of water. (a).What is the molecular weight of the carboxylic acid? g/mol (b.)What is the empirical formula...

An unidentified covalent molecular compound contains only carbon, hydrogen, and oxygen. When 5.00 mg of this...

An unidentified covalent molecular compound contains only carbon, hydrogen, and oxygen. When 5.00 mg of this compound is burned, 11.61 mg of CO2 and 1.27 mg of H2O are produced. The freezing point of camphor is lowered by 34.4°C when 4.705 g of the compound is dissolved in 19.25 g of camphor (Kf = 40.0°C kg/mol). What is the molecular formula of the unidentified compound? Choose appropriate coefficients in the molecular formula below. C H O

An unidentified covalent molecular compound contains only carbon, hydrogen, and oxygen. When 7.40 mg of this...

An unidentified covalent molecular compound contains only carbon, hydrogen, and oxygen. When 7.40 mg of this compound is burned, 21.98 mg of CO2 and 3.00 mg of H2O are produced. The freezing point of camphor is lowered by 10.4

1. A compound composed of carbon, hydrogen & oxygen has a molecular ion at m/z=112 amu...

1. A compound composed of carbon, hydrogen & oxygen has a molecular ion at m/z=112 amu in its mass spectrum. The base peak is at m/z=28 amu. The infrared spectrum shows strong absorption in the 2850 to 2980 cm-1 region, and very strong absorption at 1717 cm-1. The 1H nmr shows a single sharp signal at ? = 2.7 ppm, and the 13C nmr has two signals ( ? = 37 & 208 ppm ).

Question