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a 5.000ml aqueous sample containing hydrogen peroxide as diluted to 25ml and analyzed by titration with permanganate
MnO4-+H2O2->02+Mn^2+
The sample required 42.8ml of 0.0175M permanganate to reach the end point . What is the concentration of hydrogen peroxide in the origina sample?
Draw a complete mechanism for the reaction that occurs in this solvolysis experiment showing all the intermediates and using curvy arrows to show electron movement
Starting out on a road trip you inflate your tires on your car to the recommended pressure of 46.5 psi on a day when the temperature is -5.0 C. Upon arrival at your destination, the temperature is now 28.0 C/ The volume of the tires has increased ..
Identify the change in state that does not have an increase in entropy. Identify the change in state that does not have an increase in entropy. Water freezing Dry ice subliming Water evaporating Ice melting Water boiling
Radio wave radiation falls in the wavelength region of 10.0 to 1.00E+3 meters. What is the frequency of Radio wave radiation that has a wavelength of 426 m.
chloroform is a common liquid used in the laboratory. it vaporizes readily. if the pressure of chloroform vapor in a
Calculate the pH at the equivalence point for titrating 0.170 M solutions of each of the following bases with 0.170 M HBr. a)sodium hydroxide
Milk spoils about 5x as fast at 300 K as it does at 250 K. What is the apparent activation barrier for the "milk spoiling" reaction
Perform a mole balance over all materials to find n3, the molar flow rate of heated air and water vapor leaving the lines. What is the mole fraction of water vapor in the air and water vapor mixture stream leaving the heating lines
Suppose that the atomic mass unit (amu) had been defined as one-quarter of the average mass of an atom of carbon instead of one-twelfth of the mass of an atom of carbon-12. What would the average atomic mass of aluminum be on this new scale
Suppose a can contains a residual amount of gas at a pressure of 755 mm Hg and a temperature of 25 °C. What would the pressure be if the can were heated to 1155 °C?
probability that you removed 8 straight nails and 2 bent nails? To find the probability, first derive a general expression using the following notation
The equilibrium constant (KP) is 0.13 at a particular temperature for the reaction: N2O4(g) ? 2NO2(g) Given the following sets of initial conditions, what is the net change that must occur for the reaction to reach equilibrium
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