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Calculate the pH of a 0.047 M solution of carbonic acid H2CO3. The Ka1 of carbonic acid = 2.6 x 10-7 and the Ka2 of carbonic acid = 5.6 x 10-11 what is the easiest way someone can explain this
How many grams of NaN3 are required to produce 11.0 ft3 of nitrogen gas if the gas has a density of 1.25 g/L?
How many grams of NaOH are needed to neutralize 20.0 mL of 0.150 M H2SO4 solution? (b) How many liters of 0.500 M HCl(aq) are needed to react completely with 0.100 mol of Pb(NO3)2(aq)
Calculate the Ka for this weak acid. If 10.00mL of this mixture was then diluted with distilled water to a total volume of 100.00mL, what would be the new solution pH?
Consider a molecule with spacing between two energy levels of 0.250 kJ mol-1. Calculate the wavelength and wavenumber of the photon that would be needed to lead to an excitation between these two levels.
Determine the extent of reaction and amounts of B & Z and A reaction having time independent stoichiometry follows the equation
Using the ?H for the reaction of NaOH + HCl and the reaction of NaOH + NH4Cl How do you calculate an enthalpy change for reaction of HCl + NH3?
Ca(OH)2 (aq) was prepared) wasn't truely saturated (it was unsaturated) how would this affect the calculated value of the Ksp?
A .464 g sample of a metal, M, reacts completely with sulfuric acid according to M+H2SO4 yields MSO4+H2. A Volume of 211 mL of H is collected over water, the water level in the collecting vessel is the same as the outside level.
The bottom liquid is a relatively heavy lubricating oil, and the top liquid is water. Of the total block volume, 54.2% is immersed in the oil and the balance is in the water. In a separate experiment, an empty flask is weighed, 35.3 cm cubed of th..
You conduct an experiment where N2 is collected over water in a 2.12 L flask at 23.oC. At the conclusion of the experiment, the total pressure in the flask is 652. torr. What is the pressure of N2 in the flask?
use the appropriate standard reduction potentials to calculate the value of k at 25 degrees celcius for this reaction
Calculate the fraction of Fluorine atoms at 1000 K in each of the first three electronic levels based upon the following data
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