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Explain how did your values for the mean heats of neutralization compare for the two acid-base reactions? Explain why would you expect the heats of neutralization for these reactions to be the same, within experimental error? Define what is the net ionic reaction for both acid-base reactions?
A chemical reaction is found to have an activation energy (Ea = 15 kJ/mol). At a temperature of 505 K, what fraction of collisions have enough energy to exceed the activation energy
Consider a solution formed by mixing 61.0 mL of 0.100 M H2SO4, 26.0 mL of 0.100 M HOCl, 25.0 mL of 0.200 M NaOH, 25.0 mL of 0.100 M Ca(OH)2, and 10.0 mL of 0.150 M KOH.
under the standard conditions of 1 bar pressure and 298.15 kthe equilibrium constant kp for a gas phase reaction is
The burning of a piece of paper in air (to produce CO2 and H2O vapor) is a spontanous reaction exothermic reaction. What would be necessary to start this reaction
Express the concentration of .0220M aqueous solution of Fluoride, in mass percentage and parts per million. Assume the density of of the solution is 1.0g/mL
The dry ice is allowed to sublime and the mixture is allowed to return to 25.0 degrees Celsius. what is the total pressure in the flask?
How many quartz of ethylene glycol, C2H6O2 (density = 1.116 g/mL). Will have to be added to 5 gal of water (density = 1 g/mL) to protect an automobile radiator down to a temperature of-10 oF?
a 20 ml solution of ti2 40 mm can be oxidized by reacting with iron ions from fecl3. a titration is performed with a
How might you use 13C NMR spectroscopy to determine if the brominated product is contaminated with some unreacted starting material (during the bromination of trans-cinnamic acid)
Carbon disulfide, CS2, is a volatile, flammable liquid. It has a vapor pressure of 400.0 mmHg at 28.0°C and 760.0 mmHg at 46.5°C. What is the heat of vaporization of this substance?
0.22 litre of an idealmonatomic gas cv 3r2 initially at 12 deg c and 1.7 atmpressure undergo an expansion against a
The density of an unknown element in the gaseous state is 1.60 g/L at300 K and 1 atm. Which of the following could be the element
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