Chemistry, 10.09.2021 01:30 ogbobbythman6154
β-carotene is the most important vitamin A. Its molar mass can be determined by measuring the osmotic pressure generated by a given mass of β-carotene dissolved in the chloroform solvent. Calculate the molar mass and β-carotene if 10.0 mL of a solution containing 0.00768 g of β-carotene it has an osmotic pressure of 0.035 atm at 25 °C. Consider that the constant of ideal gases R is 0.082057 L. atm/K. mol.
Answers: 3
Chemistry, 21.06.2019 18:00, FloweyFlower
Aballoon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon? a balloon inflated with three breaths of air has a volume of 1.7 l. at the same temperature and pressure, what is the volume of the balloon if five more same-sized breaths are added to the balloon?
Answers: 3
Chemistry, 22.06.2019 14:30, Hannahmiller3773
Connect the whole numbers on the periodic table to indicate what they represent?
Answers: 3
Chemistry, 22.06.2019 23:30, Xavier8247
Rank the following four acids in order of increasing bronsted acidity : h2f+ , ch3oh, (ch3)2oh+ , ch3sh2+
Answers: 3
β-carotene is the most important vitamin A. Its molar mass can be determined by measuring the osmoti...