The sedative Demerol hydrochloride has the formula C15H22ClNO2. How many grams are in 0.024 moles of Demerol hydrochloride?
Express the mass in grams to two significant figures.

Which of the following would be an accurate picture of the earth during the summer time of the northern hemisphere?

Which ocean zone has the most abundant primary producer and why a) the abyssopelagic zone ,du to the absence of light and cold water temperatureb) the bathypelagic zone, due to the absence of light and cold water temperaturec) the mesopelagic zone ,due to uts high light availability and warm water temperature d) the epipelagic zone,due to its high light availability and warm water temperature

Upon decomposition, one sample of magnesium fluoride produced 1.65 kg of magnesium and 2.56 kg of fluorine. a second sample produced 1.32 kg of magnesium. part a how much fluorine (in grams) did the second sample produce?