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You have 25.00 mL of 3% by mass solution of hydrogen peroxide. Assume the density of this solution is 1.00 g/mL. If all of the hydrogen peroxide decomposes to water and oxygen according to the reaction below:
2H2O2 (aq) <--> 2H2O (l) + O2 (g)
What is the total volume of oxygen gas generated if the temperature is 24 degrees C and the pressure is 770 Torr. (R = 0.08206 L atm/K mol) At this point you may ignore the effect of water vapor.
Find the intrinsic conductivity for germanium. (Assuming ni = 2.5x 1019/m3 at room temperature.)
Assuming complete dissociation of the solute, how many grams of KNO3 must be added to 275 mL of water to produce a solution that freezes at -14.5 C? The freezing point for pure water is 0.0 C and Kf is equal to 1.86 C/m.
Question- Complete the charge balance equation for an aqueous solution of H2CO3 that ionizes to HCO3- and CO32- State chemical question and provide explanation
Which has the larger hydration energy, AL+3 or Li+ (Both ions are about the same size)
consider a solution formed by mixing 51.0 ml of 0.100 m h2so4 27.0 ml of 0.100 m hocl 25.0 ml of 0.200 m naoh 25.0 ml
A student substitutes his unknown for the NaBrO3. The dichloroethene layer turns dark orange. Which ions could be ruled out and what test should be performed next?
Find out the molar concentration of ethanol (C2H6O) in a wine that is 14% ethanol by mass. IF the density of this wine is 0.93 g/cm3.
Question- A piece of zinc is dropped into a hydroiodic acid solution. The gas produced is collected at a temperature of 40oC in a 2.00L flask. Its pressure is measured as 0.245 atm. What is the pressure of the hydrogen in the flask
Write down the formulas relating (a) frequency and wavelength, (b) Wavelength and momentum, and (c) energy and frequency of a photon.
Whats the volume of 1.05 mol of benzene at 20.7 C? The density of benzene of 0.879 g/mL.
A gas mixture composed of helium and argon has a density of 0.670 g/L at 755 mm Hg and 298K. What is the composition of the mixture by mass
Problem- Use the data from this table of thermodynamic properties to calculate the values of delta S rxn for each of the following reactions at 25 degrees celcius.
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