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if the freezing point of a 0.106m CH3COOH solution is -0.323 degrees celcius, what is the percent of acid that has undergone ionization?
WHen 0.075 moles of ammonium sulfate ((NH4)2SO4) are dissolved in enough water to make 337 mL of solution, how many ammonium ions are present?
The solubility of oxygen gas in water at 25 °C and 1.0 atm pressure of oxygen is 0.041 g/L The solubility of oxygen in water at 3.0 atm and 25 °C is __________ g/L.
sodium 24 has a half life of 15 hours. how much sodium 24 will remain from a 10.0-g sample after 60 hours?
The water level in a graduated cylinder was at 211 rises initially it raised to 270 after adding a piece of lead is submerged. Determine the mass in grams of the lead?
A balloon filled with helium gas at 20C occupies 2.91 L at 1.00 atm. The balloon is immersed in liquid nitrogen at -196C, raising the pressure to 5.20 atm.
In extracting an organic compound from an aqueous solutin, what is the practical advantage to having the organic solvent be more dense
For 220.0 mL of a buffer solution that is 0.205 M HCHO2 and 0.295 M KCHO2, calculate the initial and the final pH after adding 0.010 mol of NaOH.
Calculate the average kinetic energies of the CH4 and N2 molecules at 286 K and 556 K?
The following data were obtained for the determination of iron in serum by a spectrophotometeic method. Assuming the validity of Beer's Law for the experiment calcualte the concentration of iron in serum
A gaseous mixture of O2 and N2 contains 30.8 nitrogen by mass. What is the partial pressure of oxygen in the mixture if the total pressure is 805 mmHg ?
Estimate the value of the equilibrium constant at 610K for each of the following reactions. Delta Hf and S for BrCl is 14.6 kj/mol and 240.0 J/mol*K , respectively. Br2(g)+ Cl2(g) --> 2BrCl(g)
Determine the ionization constant for Hypochlorous before addition of any Potassium hydroxide, KOH and after addition of 25.0 mL of KOH ?
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