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Consider the titration of potassium acid phthalate (KHP) with NaOH. If 0.4278g KHP needed 22.86mL of NaOH to reach the phenolphthalein pink end point, explain what is the molarity of the NaOH? Explain molar mass of KHP is 204.22 g/mol.
Some enzymes require a nonprotein prosthetic group in order to function. The nonprotein part of these enzymes are called
Close the side neck of the flask with a rubber pipette bulb (or vacuum line in case of high mp substances), and then place ice water in the centrifuge tube.
Find the volume and the intermolecular force present in ammonia at STP in the following reaction and What is the intermolecular force is present in NH3(g).
Copper crystallizes in a face centered cubis lattice. If the edge of the unit cell is 351pm, what is the radius of the copper atom
A 16 ounce specialty coffee drink contains 200 mg caffeine. If all the caffeine is extracted and dissolved in an equal amount of water, what is the pH of the solution? What is the percent ionization
what is the molar concentration of a h3po3 solution if 150.00 ml of the solution was required to neutralize 75.00 ml of
select the element potassium k. give the wavelength in aringngstroumlms the frequency and the energy of the broadest
A) What is the pH of a solution made by adding 6.21 grams of NaF to 391 mL of 0.317 M HF? (Assume no change in volume takes place.) B) What is the pH of the solution in part A after adding 49.0 mL of 0.100 M HBr?
The half-life of a certain radioactive element is 1,250 years. What percent of the atoms remain after 7,500 years?
Calculate the pH and pOH of a solution that has an OH- concentration of 3.1 x 10-2M
consider reduction of the following cobalt complexes conh35l3 l pyridine i nc5h4-p-ch2nh2 ii nc5h4-p-conh2 iii by
A 0.00100 mol sample of Ca(OH)2 requires 25.00 mL of aqueous HCl for neutralization according to the reaction below. What is the concentration of the HCl
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