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A buffer solution was prepared by adding 4.95 g of sodium acetate (NaCH3CO2) to 0.250 L of 0.150 M acetic acid (Ka = 1.75 x 10-5).a. What is the pH of the buffer?b. What is the pH of the resulting solution if you add 80.0 mg of NaOH to 0.100 L of the buffer?
when 2 moles of mg3n2 are allowed to react with water to form ammonia gas and magnesium oxide how many moles of h2o are
calculate the work done in joules when 50.4 g tin is dissolved in excess acid at 1.04 atm and 20 degrees celsius.
What is the enthalpy of this reaction. Assume that no heat is lost to the surroundings or to the coffee cup itself and that the specific heat of the solution is the same as that of pure water. Enter your answer in kilojoules per mole of compound t..
When you initially standarized your NaOH sollution, you diluted your HCl stock solution and added water to it. If you used 24.8 ML of 0.18 M HCl stock solution and added another 26.2 mL of water, what is the new molarity of the acid
Identify the following compound made of H, N, and O described below. Write a Lewis structure that is consistent with the information given.
What is the melting point of mixture of 2.00 lb of NaCl and 12.00 lbs of ice if exactly half of the ice melts? Assume that all the NaCl dissolves in the melted ice and that the van' Hoff factor for the resulting solution is 1.44.
What is the barium ion concentration in a saturated barium fluoride solution made by adding solid BaF2 until no more dissolved
customers complain that the plants they buy look "different" when they get them home. The electric bill to run the store is excessive.
The melting point of Ca is 851 C, it's solid state specific heat (Csolid) is ).632 J/g C, and its heat of fusion is 233 J/g. How much energy, in joules, is required to melt 52.0 g of Ca at each of the following initial temps? a) its melting point ..
What is the pH of a solution that is formed at 25C by combining 300 mL of 0.040 M NaOH with 400 mL
Hypochlorite Oxidation of Cyclohexanol to Cyclohexanone, Basically in this experiment, we took some cyclohexanol and reacted it with hypochlorite to form cycohexanone.
from the experimental data we obtain i- directly. to obtain ksp for pbi2 we must calculate pb2 in each equilibrium
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