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Two liquids, and , have vapor pressures at a given temperature of 24 and 36 , respectively. We prepare solutions of and at a given temperature and measure the total pressures above the solutions. We obtain the following data:Solution Amt Amt ()
1 1 1 302 2 1 283 1 2 324 1 3 33
why is it best to cool the crucible and lid (and sample) in a desiccator rather than on the laboratory bench
deduce the SALC's not derived initially from the character table analysis. Provide normalized equations and a sketch for each group orbital.
Barium Sulfate can be made by mixing solutions containing the barium and sulfate ions. The net ionic equation for this reaction is Ba2+(aq) + SO4 2-(aq) ----> BaSO4(s)
A sample of oxygen , at 24 c occupy a vol of 4.14*10(2) milliliters(ml)at 1.53 atm pressure. What pressure must be applied to compress. the gas to a volume of 1.377*10(2) ml , with no temperature change
The johns family has a water tank that can deliver 10,000 cu ft of CO2 qt 20 degrees celcius with a pressure of 1ATM If the johns tank volume was cut in half and the pressure increasses
3.2 grams of a compound with a molar mass of 96.0 g/mol dissolved in 50.0 grams of water gave a solution which freezes at -1.50 °C. Kf for water is 1.86 °C/m. The van't Hoff factor for this solution is
What is the enthalpy of formation of CO(g) in kJ. 2CO(g) + O2(g) --> 2CO2(g). ?H reaction = -566 kJ ; ?H CO2(g) =-393.5 kJ/mol.
A student is given four solid samples labeled W, X, Y, and Z. All have a metallic luster. She is told that the solids could be gold, lead sulfide, mica (which is quartz or SiO2), and iodine.
As a scuba diver descends under water, the pressure increases. At a total air pressure of 2.89 atm and a temperature of 25.0 celcius, what is the solubility of N_2 in a diver's blood?
0.33g of koh is dissolved in 350.0ml of ethanol and 1.45g of c2h5i is dissolved in 350.0ml of ethanol. assuming the
The sample is placed in a drying dish (weight = 0.5000 g before the sample is added), and then placed in an oven at 104°C until all the moisture is evaporated
A student failed to standardize his NaOH solution with KHP. Instead, he calculated the NaOH solution concentration from the mass of NaOH his laboratory instructor dissolved to prepare the solution.
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