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Understand how the ability to form hydrogen bonds gives water cohesiveness and how this property is exploited by living things.
What is the molar mass of lysine if 750.0 mL of a solution containing 8.60 g of lysine has an osmotic pressure of 1.918 atm? T = 25.0°C
if the activation energy is 151 kJ/mo, calculate the temperature at which its rate constant is 7.45 x 10^-4 s^-1
She then took 15.0 mL of the stock solution and diluted it with enough water to make 65.0 mL of a final solution. What is the concentration of KOH for the final solution.
What volume will 454 grams (1 lb) of hydroigen occupy at 1.05 atm and 25 C.
The biochemical oxygen demand (BOD) is the capacity of organic and biological matter in natural water to consume oxygen. It is determined experimentally by measuring the oxygen concentration in a sealed sample before and after a 5-day incubation p..
if 11.2 L of N2 are reacted to form NH3 at STP, how many liters of hydrogen will be required to consume all of the nitrogen
4.236-g sample of a hydrocarbon (CxHy) is combusted in O2 completely to give 3.810 g of H2O and 13.96 g of CO2. What is the empirical formula of the hydrocarbon?
A buffer solution is prepared by adding 32.8 grams of sodium acetate, NaC2H3O2 to 1.00 L of 0.500 M acetic acid, CH3CO2H. Ka = 1.8 x 10-5 for acetic acid.
How does the law of definite proportions help to distinguish between a compound of certain elements
write a plausible equation to interpret, at the atomic level, what you observed in the reaction of lysol toilet bowl cleaner with .1M AgNo3
How do intermolecular attractions influence the solubility of a solute in a particular solvent
A solution of sodium chloride in water has a vapor pressure of 20.3 torr at 25°C. What is the mole fraction of NaCl in this solution?
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