Computing the molar mass of the biomolecule
A .350 g sample of a biomolecule was dissolved in 15.0 g of chloroform, and the freezing point depression was determined to be .240 degree celcius. Calculate the molar mass of the biomolecule?
Expected delivery within 24 Hours
Calculate the molarity and mole fraction of acetone in a 1.06 m solution of acetone (CH3COCH3) in ethanol (C2H5OH). (Density of acetone = 0.788 g/cm3; density of ethanol = 0.789 g/cm3.) Assume that the volumes of acetone and ethanol add.
WebAssign will check your answer for the correct number of significant figures. 4Your answer was incorrect, but has changed from what was graded.%
Under water where the temperature is 17C and the pressure is 394 kPa, a diver inhales 2.1 L of air from his SCUBA tank.
A liquid unknown was found to be soluble in cyclohexane and alcohol; the unknown was found to have a boiling point of 58 C at 670 mm Hg. What is the substance? What could you do to confirm your answer?
A 48.4 mL sample of gas in a cylinder is warmed from 19 degrees Celsius to to 88 degrees Celsius. what is its volume at the final temperature?
Suppose 321 grams of methylamine (CH3NH2) and 332L of oxygen gas are mixed together in the reaction below at STP. how many grams of water should be prouduced?
An auto technician spills 85 mL of 2.6 M H2SO4 solution from a rebuilt auto battery. How many milliliters of 2.5 M NaHCO3 must be poured on the spill to react completely with the sulfuric acid, making sodium sulfate, carbon dioxide and water?
calculate avaerage rate of decomposition of H2O2 between 0 & 4.32 x 10^4 s.
1929120
Questions Asked
3,689
Active Tutors
1413510
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Assignment task: A 72-year-old female is referred to the psychiatric clinic by her primary provider for an in-depth assessment.
Question: The nurse is caring for a patient who has reported a long history of abuse in her childhood.
What happens when parts of your body are misaligned? A misaligned spine, for example, may cause back pain and other health issues.
pH7.55 PaCO2 30 mm Hg PaO2 65 mm Hg What is the cause of this metabolic state? Ali is a 37 yo man, who presents to the nurse practitioner a
Question: Select all that apply Identify the circumstances when informed consent becomes extremely necessary.
Jane Smith emailed her physician, Dr. Ward, to express concern about an abnormal lab value report she received during her last physical exam.
What is the focus of an integrated delivery system? Multiple choice question. To offer services in the ambulatory setting