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A 0.10 M solution of NaY has a pH of 11.50. Calculate the ionization constant of HY.
Calculate the pH of a 0.32M NH4Cl solution. K for NH3= 1.8E-5
What is the percent by mass of sulfur trioxide if oleum is expressed as 3H2SO4 and discuss at least three potentially hazardous features associated with concentrated sulfuric acid.
Calculate the energy in joules and calories required to heat 24.0g water from 20.0C to 27.7C
Briefly explain the circumstances under which a mixed solvent recrystallization method would be used to recrystallize a given compound.
Draw the Newman projection for the most stable conformation of (2R,3S)-2,3-dichloropentane.
Use values of ksp and kf for copper (II) hydroxide and its complex to predict if a precipitate should form in a 0.1 M Cu2+ solution that is 3M in OH-
A 115.0 -mL sample of a solution that is 2.6×10-3 M in AgNO3 is mixed with a 225.0 -mL sample of a solution that is 0.13 M in NaCN. After the solution reaches equilibrium, what concentration of Ag+(aq) remains?
If you have a 1.1 M solution of HCL, how many milliliters of a 0.150 M magnesium hydroxide soultion are needed to neutralize the HCL soultion
For each state indicate if the water is a compressed liquid, saturated liquid, saturated mixture, saturated vapor, or superheated vapor. If the exact state cnnaot be determined from the information given, include all possible states.
How many grams of zinc are there in 22.7 g of ZnCl2?
A balloon was filled to a volume of 2.50 rm L when the temperature was \rm 30.0^{\circ}C. What would the volume become if the temperature dropped to rm 11.0^{circ}C.
Consider the mechanism of a reaction betwwen trans-stilbene and bromine. What isomer do you expect to be the reaction product? Explain your answer. Does the outcome of the experiment support your analysis?
Concentrated aqueous HClO4 has a concentration of 14.8 M. Calculate the concentrations of all ions present in a solution prepared by pipetting 4.19 mL of concentrated HClO4 into a 1000. mL volumetric flask and filling to the mark.
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