Sucrose Has a Specific Rotation of +66

question 59

Essay

Sucrose has a specific rotation of +66.5° at 25° . A solution of an unknown pure substance in ethanol (c=4.62 g/10 mL) shows an observed rotation of +20.4°. Is it possible that the substance is sucrose? Recall that [α]=α/cl , where [α] is the specific rotation, α is the observed rotation, the path length, l , is 1 decimeter; and c is the concentration of the sample.

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Definitions:

Elastic Demand

A situation in which the quantity demanded of a product or service changes significantly in response to a change in price.

Large Number

A value that is significantly higher than what is considered average or normal, often used in statistical analysis.

Marginal Revenue Curve

A graphical representation showing the extra revenue obtained from selling one more unit of a good or service.

Demand Curve

A graph showing the relationship between the price of a good and the quantity demanded, typically downward sloping, indicating an inverse relationship between price and quantity demanded.