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Ksp for CaF2 is 3.9E-11 at 25C. Assuming CaF2 dissociates completely after desolving and that there are no other equilibria affecting its solubility calculate the solubility of Caf2 in grams per liter.
Maria wants to plant a small tomato garden in her yard. She bought 25 tomato plants, and she has read that ideally tomatoes are planted in a square grid
Use a table of standard thermodynamic values to predict the standard cell potential at 81 C: Cu(s)|CuSO4||AgNO3|Ag(s) Assume that the values of ?H and ?S are independent of temperature.
Most compounds that contain N-H bonds are basic, but saccharin is acidic
when 3.02g NH4Cl solid was dissolved in 20.05 ml water the temperature of the water dropped from 19.8 degrees celcius to 9.1 degrees celcius
When 13.0 g of the mixture is dissolved in enough water to make 500. mL of solution, the solution exhibits an osmotic pressure of 6.85 atm at 25°C. Determine the mass percentage of NaCl in the mixture.
Recall from the prelab the enthalpy of vaporization of isobutane. Isobutane is the fuel used in disposable lighters. The lighters' operation is dependent upon the butane's ability to vaporize and be ignited, and this depends somewhat upon the larg..
A.E. Dyer supplied 45.9 cal of heat energy to a 156-g piece of aluminum block that was kept at 28 degree C. What is the final temperature of the aluminum block?
Determine what volume of .1 M HBr is required to neutralize 50 ml of .140 M Barium hydroxide and determine the normality of a solution consisting of 10.51 mg of NaOH in 591 mL of solution
What is w when a gas is compressed from 38.3 L to 28.8 L using a constant external pressure of 745 mmHg? (Remember to include a "+" or "-" sign as appropriate.)
identify any intermediatesin the mechanism. write the rate law for each elementary reactionin the mechanism. D) if the first step is slow and the second one is fast
how many grams of water can be cooled from 33 to 20 by the evaporation of 37 of water? the heat of vaporization of
What fraction of the total residues are branch points? B) How many reducing ends does this amylopectin have?
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