A mystery sugar solution of unknown concentration C has been placed in the polarimeter tube. Adjust your trial solution's concentration (and tube length) until the analyzer needle for your solution lines up with the mystery solution's rotation, then submit your estimate of C. This mirrors the real experiment, where you determine an unknown concentration from the observed angle of optical rotation.
Your rotation: °
Sucrose solution, sodium light, tube length fixed at 2.0 dm.
Specific rotation of sucrose: [α]D = 66.5° per dm per (g/mL).
