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A 2.00 g sample of a large biomolecule was dissolved in 15.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85 degrees C. Calculate the molar mass of the biomolecule. for carbon tetrachloride, the boiling-point constant is 5.03 degrees C x kg/mol, and the boiling point of pure carbon tetrachloride is 76.50 degrees C.
calculate the ph that results when 100 mL a liquot of 0.0500 M is added to 400 M of a NH3/NH4+ buffer that is 0.200 M in NH3 and 0.300 M in NH4Cl
Calculate the pH of this solution? if we want to lower the pH by one unit of this solution then How many mL of 0.1 M H 3 PO 4 should be added to this solution?
A mixture of 1 atm chlorine gas and 1 atm oxygen gas and no product undergoes this reaction. Cl2 + 2 O2 ---> 2 ClO2 What equation would be used to solve for the equilibrium concentrations
Design a tube and shell heat exchanger for the fluids and duty given for you and complete Project Management tasks
Calculate the mass of KClO3 decomposed. The vapor pressure of water at 28 °C is 28.3 mmHg. (Hint: The gases collected are a mixture of oxygen and water vapor
Combustion reactions are exothermic. The heat of reaction for the combustion of cyclohexane, C6H12, is 936.8 kcal/mol. What is the heat of combustion for cyclohexane in kcal/gram
What is the density in g/L of a gas mixture that contains 27% F2 and 73% He by volume at 714 mm Hg and 27.5 C.
Calculate the amount of heat released when 5.3 moles of steam at 100 degrees celscus turns to water at the same temperature
The half-life of 137Ce is 30. years. If we have 150.000 g of 137Ce now, how many grams of Ce will remain in 150. years?
2.0 moles of a nonelectrolyte solute are added to 1.0 kg of an unknown solvent. The freezing point is depressed by 7.9 K. Calculate the molal freezing point constant (Kf?) for this solvent.
How are the opposing pathways of glycolysis and gluconeogenesis prevented from extensive
N and H undergo a combination reaction under appropriate conditions, to yield ammonia: N2 (g) +3H2 (g) →2NH3 (g), determine how much sample of N2 in grams requires 3.0 g of H2 for complete reaction.
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