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A 50.0 mL volume of 0.15 M HBr is titrated with 0.25 M KOH. Calculate the pH after the addition of 16.0mL of KOH.
A 4.30 g nugget of pure gold absorbed 293 J of heat. The initial temperature was 29.0°C. What was the final temperature?
Does the effective buffer range of a buffer solution depend on the concentrations of the conjugate acid and base pairs in the buffer solution
A cylinder equipped with a piston expands against an external pressure of 1.58 atm. If the initial volume is 0.485 L
Assuming a temperature of 500 K and expansion against 1. atm of pressure, how much work, in joules, can be done by the system if the octane is completely converted to carbon dioxide and water vapor. What will the enthalpy change be for the process
how many grams of sulfur dioxide are produced when 90.0 g of thionyl chloride reacts with excess water according to the following equation? SOCl2+H2O --> 2HCl+SO2
The individual standard electrode potentials do not indicate anything about tendency to gain electrons. The cell potential of the entire cell does.
a mixture conntains two compound that absorbs strongly in the 300-600nm range the molar absorptivities of the two compounds at two wavelenghts in this range are shown in the table compound molar absorptivity at 400 nm mola..
What is the approximate Na+ ion concentration in a 0.75 M Na2CO3 solution? a. 0.375 M b. 0.75 M
how many milliliters of 0.42 M solution of acetic acid, CH3COOH, will contain 0.50 grams of acetic acid
The temperature increased by 10.08 oC. Use these data, plus the information given below for CO2 and H2O, to estimate the standard enthalpy of formation,
The frequency of vibration in a quartz watch is 33 kHz. What is the energy required to excite this vibration? Also compute omega for this vibration.
In a high-altitude city, the normal atmospheric pressure is 607.1 torr. Use the Clausius-Clapeyron equation to estimate the boiling point of water in this city
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