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Problem- Enough of a monoprotic acid is dissolved in water to produce a 0.0200 M solution. The pH of the resulting solution is 2.43. Calculate the pKa for the acid.
Provide the computation steps
only one of each of the following pairs of reactants undergoes a reaction. complete and balance the equation for the
draw the expanded structural formula for the drug. Pick one amino acid ionic group that can bind with the drug.
the average distance between mars and earth is about 1.3 108 miles. how long would it take tv pictures transmitted from
Identical hard spheres of radius R are packed together to form a simple cubic lattice. What is the ratio a/R, where a is the edge length of the unit cell
If equal masses of N2 and H2 (7.00 grams each) are combined to produce ammonia NH3, how many grams of ammonia could be produced at maximum yield.
Explain what volume of wet oxygen would you have to collect if you require the equivalent of 275mL of dry oxygen at 1.00atm? The atmospheric pressure in the lab is 721 torr. The oxygen is to be collected over water at 15.0 °C.
The average mass of a carbon atom is 12.011. Assuming you were able to pick up only one carbon atom, the chances that you would choose a carbon atom with a mass of 12.011 is:
After adding the two portions of water into your calorimeter setup and following the procedure outlined in the experiment, you determine the temperature of the mixed portions of water to be 45 oC. What is the heat capacity of the calorimeter
a common laboratory reaction is the neutralization of an acid with a base. when 60.0 ml of 0.25 m nitric at 24.5 degree
Pretend you run a reaction and your theoretical yield is 5.25 grams,but you only isolate 4.25 grams. What is your percent yield. use one decimal place
If the surface temperature of Venus is 460 *C, define what is the wavelength maximum it emits as a black body radiator. Is this in the infrared region
What is the hybirdization of a centeral atom that has four sigma bonds and has no pairs of electrons?
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