El ácido pantoténico (vitamina B5) es una vitamina soluble en agua. Una solución contiene 70 g de ácido pantoténico (C9H17NO5) disuelto en 2113 g de agua a 55°C, calcule el porcentaje en masa de ácido pantoténico en la disolución y la Molaridad de la disolución.

Monkeys and bats have similar bone structure in their forelimbs. however, monkeys have longer forelimbs to use for climbing and swinging in trees. bats have shorter forelimbs to use for flight. which term best describes how monkey and bat forelimbs are related to each other? a. homologous b. embryonic c. analogous d. vestigial

Liquid from a brewery fermentation contains 10% ethanol and 90% water. part of the fermentation product (50,000 kg/h) is pumped to a distillation column on the factory site. under current operating conditions, a distillate of 45% ethanol and 55% water is produced from the top of the column at a rate of one-tenth that of the feed. what is the composition of the waste "bottoms" from the still?

Which process describes vaporization that takes place below the surface of a liquid? condensation melting boiling evaporation