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If 18.4 mL of 0.800 M~rm HCl solution are needed to neutralize 5.00 rm mL of a household ammonia solution, what is the molar concentration of the ammonia?
The blood buffering system is aided by the enzyme carbonic anhydrase, which interconverts carbon dioxide and water to bicarbonate and H
A buffer solution is made that is 0.334 M in HCN and 0.334 M in NaCN. (1) If Ka for HCN is 4.0E-10, what is the pH of the buffer solution. (2) Write the net ionic equation for the reaction that occurs when 0.100 mol HI is added to 1.00 L of the bu..
A hydrogen atom initially in the n=7 quantum state emits a photon having a wavelength of 2.16495E-6 m. What is the quantum number of the final state of the atom?
What is the change in internal energy (in J) of a system that absorbs 0.836 kJ of heat from its surroundings
While in Europe, if you drive 107 km per day, how much money would you spend on gas in one week if gas costs 1.10 per liter and your car's gas mileage is 26.0.
Calculate the minimum number of grams of propane,C3H8 (g) , that must be combusted to provide the energy necessary to convert 3.15kg of ice at -15.5degC to liquid water at 75.5degC. C3H8 (g)
Carboxypeptidase A is an exopeptidase, which means that it only cleaves the C-terminal residue from a polypeptide chain. Why is only the C-terminal residue cleaved, and no cleavage in the chain?
A weather balloon has a volume of 750 L when filled with helium at 8 degrees C at a pressure of 380 torr. What is the new volume of the balloon where the pressure is 0.20 atm nd the temperature is -45 degrees C
Ionization energy is the energy required to remove an electron from an atom in the gas phase. The ionization energy of lead is 715.0 kJ/mol.
What is the molar concentration of free (uncomplexed) Ag+ in solution when 4.25g AgNO3 is dissolved in 100.0 mL 1.00 M NH3 aqueous
do not specify stereochemistry. (The absolute stereochemical configurations of chiral substances cannot be determined from the data.)
Complete and balance the following chemical equation using the smallest whole number coefficients. Assume the reaction takes place in acidic aqueous solution. Use H + to balance charge, not H 3 O +
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