chemistry The air has a specific molar heat capacity of 29.1 j/mol*K. The molar mass of air is 28.9 and a density . The molecular weight of chemical compounds is one of the basic information for research and development, which are frequently available only at a specific chemical-related website when the compound is not popular. Benzene contains only carbon and hydrogen and has a molar mass of 78.1 g/mol. 17. What volume of benzene (C6H6,d=0.88g/ml,molar mass=78.11g/mol) is required to produce 1.5 x 10^3 kJ of heat according to the following reaction? Convert grams C6H6 to moles or moles C6H6 to grams. • C6H6 + Br2 = C6H5Br + HBr chem. What volume of benzene (C 6 H 6, d= 0.88 g/mL, molar mass = 78.11 g/mol) is required to produce 1.5 x 10 3 kJ of heat according to the following reaction? 2 C 6 H 6 (l) + 15 O 2 (g) → 12 CO 2 (g) + 6 H 2 O(g) ΔH° rxn = -6278 kJ 18. Benzene causes central nervous system damage acutely and bone marrow damage chronically and is carcinogenic. Molar mass of C6H6 = 78.11184 g/mol This compound is also known as Benzene.. (Do not use the molar mass of the compound to find the empirical formula!) Calculate the molar mass of a compound from the following information. Analysis shows the compound to be 7.74% H by mass. In chemistry, the formula weight is a quantity computed by multiplying the atomic weight (in atomic mass units) of each element in a chemical formula by the number of atoms of that element present in the formula, then adding all … (Note K for benzene = 5.12°C/m. benzene: C6H6. Benzene is less dense than water and is slightly soluble in water.Hence it floats on water.Benzene vapor is heavier than air. ››C6H6 molecular weight. Gas chromatography-mass spectrometry identified 1,2-diacetylbenzene in the urine samples of rats given 165 mg kg-1 1,2-diethylbenzene orally on four consecutive days. ››More information on molar mass and molecular weight. Find the empirical and molecular formulas of benzene. Instant Molecular Weight For Over 100 Million Compounds. If 9.56-gram sample of this compound is dissolved in 250 grams of benzene. What is the molar mass of an unknown compound? Benzene C6H6 Molar Mass, Molecular Weight. The freezing point of this solution is 1.02°C below that of pure benzene. Molecular weight calculation: 12.0107*6 + 1.00794*6 and freezing point of pure benzene is 5.5 °C) Benzene, C6H6, is a clear colorless to light-yellow liquid, flammable with a petroleum-like, aromatic odor. The freezing point of the solution is found to be 2.8 degrees C. The freezing point depression constant for benzene is 4.3 degrees C/m. Temperature (K) A B C Reference Comment; 333.4 - 373.5: 4.72583: 1660.652-1.461: Eon, Pommier, et al., 1971: Coefficents calculated by NIST from author's data. You find that the freezing point of benzene is 5.5 degrees C. You then dissolve 1.60 grams of the unknown compound in 20.00 grams of benzene. 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