How many bugs will you collect in five minutes
Imagine you are driving at speed 60 mph through air filled with bugs at concentration 1 per cubic meter. The windshield is a flat panel of area 2 m^2, perpendicular to the ground. How many bugs will you collect in 5 min?
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In the stock room you find a 12.0 M solution of HCl. How many mL of this solution should you dispense to make your diluted solution
How do the units mol/L and ppm compare? You will be given a 100.5 ppm iron stock solution (the iron is ferrous ammonium sulfate hexahydrate, (NH4)2Fe(SO4)2 x 6H2O. Report its molecualr weight in g/mol, and determine the concentration of the stock s
A system comprised of 2.900×10^1 g of Ne(g) cools from 170.0°C to 45.0°C at a constant pressure of 5.5 atm. The molar heat capacity at constant pressure for Ne(g) is 20.80 J K?1 mol?1. calculate q,w,delta E, ANDdelta H
A solution of HCl in water conducts an electrical current, but a solution of HCl in hexane does not. Explain this behavior in terms of ionization and chemical bonding?
Another hypothetical molecular compound, Y 2(g), has a bond energy of 750 kJ/mol, and the molecular compound XY(g) has a bond energy of 1500 kJ/mol. Using bond-energy information, calculate ?H for the following reaction:
One of the most common causes of inaccurate melting points is too rapid heating of the melting point bath. Under these circumstance, how will the observed melting point compare to the true melting point?
A calorimeter containing 150 g of water at 23.0 degrees celsius and the temperature of the calorimeter rose to 35.60 degrees celsius. what would be the heat capacity of the calorimeter?
Arrange the following compounds by boiling point: 1-pentanol hexane 1-pentanamine butyl methyl ether
What is the ratio of acetate to acetic acid in a 0.1 M buffer at pH 4.75? What happens when 5 mL 0.1 M HCl is added to 50 mL of this buffer?
Phosphatidylethanolamine and PIP2 containing identical fatty acyl residues can be hydrolyzed at the same efficiency by phospholipase C. Will the hydrolysis products of the two lipids have the same effect on protein kinase C
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