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Specified that Ka for HBrO is 2.8 × 10-9 at 25 °C, explain what is the value of Kb for BrO- at 25 °C? Specified that Kb for NH3 is 1.8 × 10-5 at 25 °C, explain what is the value of Ka for NH4 at 25 °C?
A solution of HCl in water conducts an electric current , but a solution of HCl in hexane does not. explain this behavior in terms of ionization and chemical bonding
A patient needs to take 875 mg of ibuprofen twice daily. The pills in the bottle are each 250. mg. How many pills does the patient need to take each time she wants the 875 mg dosage? Assume that these pills are scored and can be cut in half if necess..
Lidocaine is thought to bind to receptors in its methylated form. identify in writting the atoms or groups in the compound that could be involved in its binding to a receptor via- hydrogen bonding (1 example)
A mixture of 0.140 moles C is reacted with 0.117 moles of O2 in a sealed, 10.0 L vessel at 500 K, producing a mixture of CO and CO2.
Find out the required pressure to compress 180 liters of N at 1.0 atm into a tank whose volume is 34 liters.
A current of 4.65 A is passed through a Ni(NO3)2 solution for 1.10 hours. How much nickel is plated out of the solution
A single sp^3 hybrid orbital has a) one lobe b) two lobes of equal size c) two lobes of unequal size d) four lobes of equal size
What is the minimum pressure in kPa that must be applied at 25 °C to obtain pure water by reverse osmosis from water that is 0.156 M in sodium chloride and 0.094 M in magnesium sulfate?
A hot-air balloon has a volume of 875L . What is the original temperature of the balloon if its volume changes to 955L when heated to 56 degrees celsius
How many total stereoisomers are possible for 4-chloro-3-hexanol? Given that opening of the epoxide ring in this reaction is stereoselective, provide the names of the only two isomeric products formed using IUPAC guidelines.
To the organic chemist, mass spectrometry is especially useful in the determination of the structure of a new compound because it provides information about
The normal melting point of napthalene is 353.05K. When the solution becomes saturated at 310k, we expect the mole fraction of napthalene in the saturated solution.
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