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Calculate the pH of a 0.60 M H2SO3, solution that has the stepwise dissociation constants Ka1=1.5x10^-2 and Ka2= 6.3x10^-8
Write reactions and equilibrium relationships for the first four complexes formed between cadium(II) and chloride
A student adds 8.10 mL of a 0.490 M HCl solution to the beaker. How much will the pH change? The PKa of acetic acid is 4.760.
A mixture is prepared by adding 22.7 mL of 0.157 M Na3PO4 to 31.2 mL of 0.277 M Ca(NO3)2. (a) What mass of Ca3(PO4)2 will be formed? (b) What will be the concentrations of each of the ions in the mixture after reaction?
hydrazoic acid (HN3, Ka = 1.900x10-5) with 0.08699 M KOH, what is the pH after 92.88 mLs of titrant have been added
Titration of the newly freed EDTA required 18.0 mL of 0.0210 M Ca2 . What were the molarities of Cd2 and Mn2 in the original solution?
Two seperate samples of argon gas are held seperate chambers connected with a valve in the middle. Chamber A has a bolume of 2.00 L, and contains 120 g of Ar at 650 K
if the syinge colume had been incorrectly read, giving a calculated system volume of 25.6 mL, what would have been the percent error in the calculated value of R?
showing electron flow with arrows, for the acid-catalyzed hydrolysis of ethyl acetate to acetic acid and ethanol- the reverse of a Fischer esterification reaction.
Explain why a hydroxyl group in the para position (p-hydroxybenzoic acid, pKa=4.48) decreases the acidity while a hydroxyl group in the meta position (m-hydroxybenzoic acid, pKa=4.07) increases the acidity relative to benzoic acid (pKa=4.19).
Do not delete any of the atoms or bonds in the ring or directly attached to the ring with the Erase button, and do not move atoms or groups directly attached to the ring by dragging them.
If 18.4mL of 0.800M solution are needed to neutralize 5.00mL of a household ammonia solution, what is the molar concentration of the ammonia?
a breathing mixture used by deep-sea divers contains helium oxygen and carbon dioxide. what is the partial pressure of
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