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. • C6H6 + Br2 = C6H5Br + HBr So I assumed 100 g. 7.74% => 7.74 g H. 78.1-7.74= 70.36 g C 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? If 9.56-gram sample of this compound is dissolved in 250 grams of benzene. Benzene causes central nervous system damage acutely and bone marrow damage chronically and is carcinogenic. Benzene contains only carbon and hydrogen and has a molar mass of 78.1 g/mol. (Note K for benzene = 5.12°C/m. ››C6H6 molecular weight. 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. 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. Instant Molecular Weight For Over 100 Million Compounds. 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? 17. Molar mass of C6H6 = 78.11184 g/mol This compound is also known as Benzene.. chemistry Convert grams C6H6 to moles or moles C6H6 to grams. (Do not use the molar mass of the compound to find the empirical formula!) 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. 2 C 6 H 6 (l) + 15 O 2 (g) → 12 CO 2 (g) + 6 H 2 O(g) ΔH° rxn = -6278 kJ 18. The freezing point of this solution is 1.02°C below that of pure benzene. Analysis shows the compound to be 7.74% H by mass. Calculate the molar mass of a compound from the following information. 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. and freezing point of pure benzene is 5.5 °C) 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 . benzene: C6H6. chem. Benzene is less dense than water and is slightly soluble in water.Hence it floats on water.Benzene vapor is heavier than air. Molecular weight calculation: 12.0107*6 + 1.00794*6 Find the empirical and molecular formulas of benzene. Benzene, C6H6, is a clear colorless to light-yellow liquid, flammable with a petroleum-like, aromatic odor. ››More information on molar mass and molecular weight. Benzene C6H6 Molar Mass, Molecular Weight. 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 … What is the molar mass of an unknown compound?