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A person whose mass is m = 56.0 kg steps on a mechanical bathroom scale placed on an inclined plane that makes the angle α = 22.1° with the horizontal. What is the reading on the scale?
Order the four subshells with in a single shell from lowest to highest energy.
Calculate the pH of a 0.60 M H2SO3, solution that has the stepwise dissociation constants Ka1=1.5x10^-2 and Ka2= 6.3x10^-8
If you started with the nicked molecule, added ethidium bromide, ligated the molecule to be a closed circle, and then removed the ethidium bromide, would the molecule have positive supercoils, negative supercoils, or no supercoils? Explain.
Covalent/ionic/atomic radius of hex-1-ene
What volume will contain 5.0 mol of aluminium? The density of aluminium is 2.7 g/ml.
A voltaic cell is constructed by immersing a strip of silver in a 1.0M AgNO3 solution and a strip of cadmiun metal in a 1.0M Cd(NO3)2 solution. The circuit is completed by a wire and a salt bridge in the usual way. Write the balanced overall cell ..
A student mixes 50.0mL of 1.00M Ba(OH)2 with 79.9mL of .375M H2SO4. Calculate the pH of the mixed solution.
Chlorine dioxide gas (ClO2) is used as a commercial bleaching agent. It bleaches materials by oxidizing them. In the course of these reactions, the ClO2 is itself reduced. What is the Lewis structure for ClO2?
two moles of he gas are at 23 degrees c and a pressure of 220 kpa. if the gas is heated to 44 degrees c and its
an unknown amount of CO2 occupies a volume of 9.04 L at 25°C and 1.17 atm pressure. How many moles of CO2 are there in this sample?
Polypropylene can be made with varying degrees of crystallinity. If it is processed to have an amorphus structure (where the side-chains are ordered randomly, which statements
When 27 mL of a 150 mL stock solution containing 2.11 M Na2S is diluted to 74 mL, how many moles of Na+ are in the new solution
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