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Choose an organism from the Animal Kingdom that is beneficial or harmful to humans. Describe the organism that you chose and why or how they are beneficial or harmful to humans.
For a protein w/ a molar mass of 1x10 6 u, calculate the molar concentration required to obtain an osmotic pressure of 10 matm at 25 degrees C
Find the Mach number of an airplane traveling at 2000 f t/s at altitudes of 5000 f t, 10, 000 f t, 20, 000 f t, and 30, 000 f t. Assume a standard atmosphere.
a steel cylinder holds 1.60 g of ethanol c2h5oh. what is the pressure of the ethanol vapor if the cylinder has a volume
Nicotine, a component of tobacco, is composed of C, H, and N. A 12.075 mg sample of nicotine was combusted, producing 32.757 mg of CO2 and 9.391 mg of H2O. What is the empirical formula for nicotine?
Calculate the change in internal energy(delta E) for a system that is giving off 25.0kJ of heat and is changing from 6.00L to 12.00L in volume at 1.50atm pressure. (101.3J=1 L*atm)
A student attempted to identify an unknown compound by the method used in this experiment. she found that when she heated a sample weighing 0.4826 g, the mass barely changed, dropping to 0.4855 g.
Prepare a Draft project that how we can use it in our life and in the following maybe can assist this is our lab report. How Much Cobalt is in Soil?
Alcohols (R-OH) are structurally similar to water. Why are alcohols not as powerful a solvent as water for ionic compounds
Write the balanced equation for the yeast using glucose to produce energy, ethanol and carbon dioxide.
the compound sucrose is commonly known as table sugar. the chemical formula of sucrose is C12H22O11. How many hydrogen atoms are resent in 1.50 x 10^-4 mol of sucrose
what is the change in pH after addition of 10.0mL of 1.0M sodium hydroxide to 90.0mL oof a 1.0M NH3/1.0M NH4+ buffer? (Kb for ammonia is 1.8 X 10-5)
what volume will 500 mL of gas at 20 C and a pressure of 420 mm Hg occupy if the temperature is reduced to -80 C and the pressure increased to 650mm Hg
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