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Problem- What are the concentrations of HCO3- ? and CO32- ?, respectively, for a 0.0050 M carbonic acid solution? Assume there is no loss of any carbonate species via generation of CO2.
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how many calories of heat must be added to raise the temperature of 40 g of water fro 25 Celsius to 50 Celsius
In the ground state of an atom of silver (Ag), Define how many electrons will there be with the quantum number l = 1. (The n, ml and ms quantum numbers may have any appropriate values.)
Problem- An artifact has a carbon-14 decay rate of 7.94 disintegrations per minute per gram of carbon (7.94 dis/min?gC). Living organisms have carbon-14 decay rate of 15.3 dis/min?gC. How old is the artifact? (The half-life of carbon-14 is 5730 yr..
Determine the shape (geometry) of PCl3 and then decide on the appropriate hybridization of phosphorus in this molecule
what volume of ethylene glycol, a nonelectrolyte, must be added to 15.0 Liters of water to produce an antifreeze solution with a freezing point of - 30 degrees celcius? what is the boiling point of the solution?
When 26.0 mL of 0.675 M H2SO4 is added to 26.0 mL of 1.35 M KOH in a coffee-cup calorimeter at 23.50°C, the temperature rises to 30.17°C. Calculate H of this reaction per mole of H2SO4 and KOH reacted.
The enthalpy of combustion for propane is -2044 kJ/mol. How many liters of propane (at STP) must be burned in order to convert 552 grams of ice initially at -11°C to liquid water at 89°C
How much heat do you need to raise the temperature of 150 g of gasoline from 30oC to 15oC?
If 39.85 mL of 0.09827 M NaOH is required to neutralize 0.7997 g of an unknown acid, HA, what is the molar mass of the unknown acid
The vapor pressure of carbon tetrachloride, , is 0.354 atm and the vapor pressure of chloroform, is 0.526 atm at 316K . A solution is prepared from equal masses of these two compounds at this temperature.
Which is the best solvent for recrystallizing acetanilide, water or dichloromethane (CH2Cl2)? Explain your answer to receive lifesaver rating.
Determine the rate constant also explain how many mg will remain after thirty nine days - A radiation biologist studies the decomposition rate of a certain substance and obtains the given data as
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