This chemistry question involves key chemical concepts and calculations. The detailed solution below walks through each step, from identifying the reaction type to computing the final answer.
ScanSolve AI Answer
Step 1: Identify the given values. Observed rotation () = +13.6^ Mass of glucose = 8 g Volume of methanol = 100 mL Path length of polarimeter tube (l) = 2 dm Step 2: Calculate the concentration (c) of the glucose solution. The concentration is given in g/mL. c = mass of solutevolume of solution = 8 g100 mL = 0.08 g/mL Step 3: Use the formula for specific rotation. The specific rotation [] is calculated using the formula: [] = ()/(l · c) where is the observed rotation, l is the path length in decimeters (dm), and c is the concentration in g/mL. Step 4: Substitute the values and calculate the specific rotation. [] = (+13.6^)/(2 dm) × 0.08 g/mL [] = (13.6)/(0.16) [] = 85 The specific rotation of glucose is 85^ dm^-1 (g/mL)^-1. Step 5: Compare the result with the given options. The calculated specific rotation is 85. This matches option (A). The final answer is A