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What mass of solid sodium hypochlorite (molar mass = 74.44 g/mol) should be added to 1.0 L of 0.255M hypochlorous acid to make a buffer with a pH of 7.54? (Ka of HClO = 3.8 x 10-8)
Assume you have a solution containing two volatile liquids. Given the data for liquid A: MM = 56.89 g/mole, partial pressure = 0.903 atm and for liquid B: MM = 14.52 g/mole, partial pressure = 0.995 atm
One mole of an ideal monatomic gas initially at 300K is expanded from an initial pressure of 10 atm to a final pressure of 1 atm. Calculate change in E, q, w, and change in H and the final temp if the expansion is carried out according to each of ..
what is the maximum kinetic energy of a photo electron ejected from cesium by 555nm light? note that if the wavelength of the light used to irradiate the cesium surface become longer than 600 nm, no photoelectrons are emitted.
A car travels at 58.0 miles per hour and gets 10.0 kilometers per liter of gasoline. How many gallons of gasoline are needed for a 1.00 hour trip.
The mass percent of a three component gas sample is 58.0% C2H4O2, 14.6% NH3 and 27.4% CH2O. Calculate the partial pressure (atm) of CH2O if the total pressure of the sample is 0.340 atm.
How many moles of Ba(OH)_2 are present in 255 mL of 0.800 it M Ba(OH)_2?
19.0 g of sodium hydroxide is dissolved in 731 g of water. Calculate the mass percent of sodium hydroxide in the resulting soulution.
Calculate DG for the isothermal compression of 30.0 g of water from 1.0 atm to 100.0 atm at 25 °C; neglect the variation of V with P. The density of water at 25 °C is 0.997 g/cm3.
Methane and hydrogen sulfide form when 36g H2 reacts with carbon disulfide. calculate the percent yield if the actual yield of CH4 is 69.8 g
A student found that a maximum of 0.800g silver acetate is able to dissolve in 100.0ml of water. What is the molar solubility and Ksp for the salt?
Draw all of the resonance structure of SCP-.write formal charges on All atoms. point out which one has most likely resonance
At a temperature T, a previously empty 5.00L flask is prepared by adding 1.20 mol SO2 and 1.5 mol of O2. Determine the concentrations of SO2, O2 and SO3 once equilibrium is established. KC=963
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