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What is the concentration of K+ ions in a 0.045 M K2CO3 solution assuming complete dissociation?
A 10.0-gram sample of an unknown solid monoprotic acid is dissolved in water and titrated with 0.789 M NaOH, requiring 40.6 mL to reach the endpoint. Determine the molar mass of the unknown acid.
Depict what kind of redox reaction each reaction below is. Identify the oxidizing and reducing agents.
How many moles of HF (Ka = 6.8 10-4) must be present in 0.165 L to form a solution with a pH of 2.25?
Benzene formation is insignificant in bulk metathesis polymerization. Considering the mechanism of metathesis polyerizationm, suggest a reason for the different behavior
When 4.70 g of a nonelectrolyte solute is dissolved in 915 mL of water at 21 degrees C, resulting solution exerts an osmotic pressure of 839 torr. What is the molar concentration of the solution?
what is the freezing point of an aqueous solution of a nonvolatile solute that has a boiling point of 102.45 0C?
How many grams of lead chromate form when a 1.00-g sample of Pb(NO3)2 is added to 5.0 mL of 1.00 M K2CrO4 solution.
Identify the spectator ions present when the following are mixed. Include aggregation states. If there are no spectator ions, say none.
Calculate the pH during the titration of 30.00 mL of 0.1000 M NaOH with 0.1000 M HCl after 30.31 mL of the acid
Based on the cation/anion radius ratio, what coordination number is expected for Zinc Sulfide
hexane has a normal boiling point of 68.7 c. what is the mole fraction of a nonvolatile solute in a hexane solution
Explain what is the pH of a solution that results when. 010 mol HNO3 is added to 500mL of a solution that is .10 M in aqueous ammonia as well as .61 M in ammonium nitrate. Presume no volume change. The Kb for NH3= 1.8x10-5.
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