The observed rotation of 10ml of a solution containing 2g of a compound when placed in 25cm long polarimeter tube is +13.4^@. What is the specific rotation of the compound?

The observed rotation of 10ml of a solution containing 2g of a compoun

1.	The observed rotation of 10ml of a solution containing 2g of a compound when placed in 25cm long polarimeter tube is +13.4^@. What is the specific rotation of the compound?
Answer» SOLUTION :`alpha_(OBS) = + 13.4^(@)` ,C `=0.2gcm^(-3)` ,Specific rotation ,`alpha = (+13.4)/(0.2 xx 2.5) = + 26.8^(@)`