(b) Determine the molecular formula. Acid HA A-Ka pKa Acid Strength Conjugate Base Strength Hydroiodic HI I-Hydrobromic HBr Br-Perchloric HClO4 ClO4-Hydrochloric HCl Cl-Chloric HClO3 ClO3- ... Lactic HCH3H5O3 CH3H5O3-1.38 x 10-4 3.86 Ascorbic (1) H2C6H6O6 HC6H6O6-7.9 x 10-5 4.10 Benzoic -C6H5COOH C6H5COO 6.46 x 10-5 4.19 Oxalic (2) HC2O4-C 2O4 20 Plan: Assume 100 g lactic acid to express each mass % as grams. Skill 3-5 : Lactic acid (M = 90.08 g/mol) contains 40.0 mass % C, 6.71 mass % H, and 53.3 mass % O. Examples of molar mass computations: NaCl, Ca(OH)2, K4[Fe(CN)6], CuSO4*5H2O, water, nitric acid, potassium permanganate, ethanol, fructose. 6.56x10*22 molecules? Lactic acid is colourless or yellow syrupy, during its liquid state. Convert … And it’s PH level is 3.51 per 1 mM of lactic acid. The molecular weight or molar mass of lactic acid is 90.08 g/mol. Molar mass of lactic acid- 90.08 g/mole General description L-(+)-Lactic acid is the only naturally occurring lactic acid in humans and mammals.Commercially, few bacteria like Lactobacillus casei, L. delbrueckii, Streptococcus lactis produces L-Lactic acid by fermentation process. 2) Determine the empirical and molecular formula for the following compounds: a.) In solid form, you can find it in the white powder. About Lactic acid; Lactic acid weighs 1.206 gram per cubic centimeter or 1 206 kilogram per cubic meter, i.e. Production includes both artificial synthesis as well as natural sources. When in the dissolved state, it forms a colorless solution. 3+12,0107+1,00794+(15,9994+1,00794)+12,0107+15,9994+15,9994+1,00794. lactic acid; 40.00% C, 6.71% H and 53.29%O. 7.3x10*24 molecules b. density of lactic acid is equal to 1 206 kg/m³; at 21°C (69.8°F or 294.15K) at standard atmospheric pressure.In Imperial or US customary measurement system, the density is equal to 75.2881 pound per cubic foot [lb/ft³], or 0.69711 ounce per cubic inch [oz/inch³] . Poly(lactic acid) PLA 2003D with a number-average molar mass (M n) of 100,000 g/mol and molar mass dispersity (Ð) of 1.6 was purchased from Nature Works LLC, U.S.A. Its melt flow index was 6 g/10 min, determined at 210 °C, under a load of 2.16 kg [ 35 ]. The melting point of lactic acid is 530 Celsius, and the boiling point is 1220 Celsius. (a) Determine the empirical formula of lactic acid. what is the mass in grams of each quantity of lactic acid (C3H6O3, molar mass 90.08 g/mol) a. Mass percentage of the elements in the composition It is white in the solid state and it is miscible with water. Examples of molar mass computations: NaCl, Ca(OH)2, K4[Fe(CN)6], CuSO4*5H2O, water, nitric acid, potassium permanganate, ethanol, fructose. What is the empirical formula and molecular formula for lactic acid if the percent composition is 40.00% C, 6.71% H, 53.29% O, and the approximate molar mass is 90 g/mol? Lactic acid is an organic acid.It has a molecular formula CH 3 CH(OH)COOH. Lactic acid activates hydroxycarboxylic acid receptor, G-protein coupled receptor 81 (GPR81).