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1. The maximum amount of solid AgBr that will dissolve in 250ml of water is 34.3 µg. Calculate the Ksp for AgBr.
2. A sample of solid CaF2 is placed into a test tube of water and allowed to reach equilibrium. Calculate the equilibrium concentrations of Ca2+ and F-, given the Ksp of CaF2 = 3.9x10^-11.
Calculate the theoretical yield of aspirin to be obtained, starting with 2.0 g of salicylic acid. 2. If 1.8 g of aspirin were obtained in this experiment, what would be the percent yield?
When a metal at higher temperature is transfer to water at a lower temperature, heat is inevitably lost to the calorimeter. Will this unmeasured heat loss increase or decrease the calculated value of the specific heat of the metal
20 ml Calcium Hydroxide solution was titrated with 9.8 ml 0.0105 M HCl in according to reaction: Ca(OH)2 + 2HCl ? CaCl2 + 2H2O What is the Molarity of Ca(OH)2 in the solution
a 55.0-l steel tank at 20.0degc contains acetylene gas c2h2 at a pressure of 1.39 atm. assuming ideal behavior how many
How much antifreeze would you add to a 2.0 gal water tank in order to obtain a solution that freezes
Suppose helium nuclei has exactly the same mass as adding two single protons and neutrons, the Sun's luminosity would be
The pKa of aspirin (acetyl salicylic acid) is about 3 while the pH of stomach acid is about 1.0 Circle the approximate proportion of ionized (deprotonated and charged for acid) to unionized (protonated and uncharged for acid) aspirin that would oc..
The electrons in the neutral carbon atom are redistributed so that there are three lone electrons in the three 2p orbitals and one lone electron in the 2s orbital.
Identifying and balancing the different types of chemical reactions. Evaluate which processes represent chemical reactions.
The reactant concentration in a first order reaction was 5.50x10^-2 M after 40.0s and 1.60x10^-3 M after 100s. What is the rate constant for this reaction
calculate the total volume of gases when collected at 1.20 atm and 25 degrees celsius from 261 grams of nitroglycerin.
How much KOH (in grams) is required to neutralize a sample of 125mL of 0.5N HCl that has just been added to 875mL of distilled water
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