【單選題】每題 2 分,共計 40 分,答錯 1 題倒扣 0.5 分,倒扣至本大題零分為止,未作答,不給分亦不扣分。
61. A student measured the optical activity of an unknown sugar at two different concentrations. The results of his
measurements are shown below. Given that the sample cell had a path length of 10.0 cm, calculate the specific rotation
for the unknown sugar.
concentration observed rotation
2.00 g sugar in 10.0 mL water +159.1°
5.00 g sugar in 10.0 mL water +127.8°
(A) -10.5°
(B) +25.6°
(C) +79.5°
(D) -104.5°
(E) +256.2°
詳解 (共 1 筆)
未解鎖
使用兩個數據點來求解特定旋轉的意圖 ,...