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Some sugar is dissolved in water to make a solution. If the boiling point of the solution is measured at 102.6 degrees C, predict the freezing point of the solution.
15.0 mL of 0.50 M HCl is added to a 100.-mL sample of 0.496 M HNO2 (Ka for HNO2 = 4.0 × 10-4). What is the equilibrium concentration of NO2- ions?
calculate the mass (g) of the excess reactant after thereaction is complete e. calculate the theoretical yeild (g) of 2,2dibromopropane
calculate the formal concentration of a sodium acetate solution prepared by diluting 45.0 ml of a solution containing
Calculate the approximate molarity of this solution from the volume, percent composition, and density.
Calculate the pH of each of the following buffered solutions. 0.10M acetic acid/0.25M sodium acetate
Calculate the osmotic pressure (in torr) of 5.48 L of an aqueous 0.136 M solution at 25 celsius if the solute concerned is totally ionized into three ions (for example, it could be Na2SO4 or MgCI2).
How do you calculate the number of moles of all sulutes (including cations and anions): Please show how to solve the problem.
If 5.400 g of C6H6 is burned and the heat produced from the reaction is absorbed into 5691 g of water and 21 degrees C, what is the final temperature of the water?
A lab protocol on synthesizing sulfathiazole from p-acetamidobenzenesulfonyl chloride and 2-aminothiazole. It would be appreciated if exact amounts of reagents, solvents, etc (in grams, mmols, mls - etc), could be given.
the ammonia solution nh3aq has pkb 4.76. a buffer solution has ammonium chloride and ammonia has a ph 9.45 and a
Calculate the pH at the equivalence point for the titration of a solution containing 1250.0 mg of hilariamine (MW = 104.75 g/mol, Kb = 7.1×10-4) with 0.1000MHCl solution.
The qualitative analysis scheme contains a vast array of reactions involving precipitation, formation of coordination complexes and oxidation-reduction. Identify each of the following as primarily one of the above kinds of reaction.
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