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Equal quantities of 0.010M solutions of an acid HA and a base B are mixed. The pH of the resulting solution is 9.2.
Write the equilibrium equation for the reaction between HA and B.
If Ka for HA is 8.0×10?5, what is the value of the equilibrium constant for the reaction between HA and B?
What is the value of Kb for B?
Suppose that a fully charged lead-acid battery contains 1.50 L of 5.00 M H2SO4. What will be the concentration of H2SO4 in the battery after 3.30 A of current is drawn from the battery for 8.00 hours?
Determine the enthalpy change for the combustion of ammonium nitrate(NH4NO3)with decane (C10H22) in oxygen. Hf for C10H22= -249.7 kJ/mol
calculate the activation energy for a reaction if its rate constant increases from 10 to 45 s as the temperature increases from 298 to 315 k .
A column of water exerts, a pressure of 100pa and a force of 2.0 N. What is the cross sectional area of the column?
Explain how Le Chatelier's Principle affects the extent of the dissociation of acetic acid in a buffer that is 0.10 M acetic acid and 0.10 M acetate ion
The vapor pressure of CCl4 (MM = 153.81g/mol) at 65 degree celsius is 504mmHg. How many grams of C10H8 (MM= 128.2gmol) must be added to 25.00g of CC4 so that the vapor pressure of CCl4 is 483mmHg?
Student B's results are 8.4 g/cm^3, 8.8 g/cm^3, 8.3 g/cm^3. Compare the two sets of results in terms of precision and accuracy.
8.0 moles of CO2 and 9.0 moles of H2O are places in a 5.0L vessel. When equilibrium is established, [C2H4]=0.45 M. Calculate Keq
Calculate the equilibrium constant, K. (e) Which side of the reaction (reactants or products or neither) is favored structurally?
Using this equation, how many moles of water are produced when .875 moles of methane burn?
Calculate the number of moles of Br2 that would react with 0.793 moles of AI to form AIBr3?
a sample of hydrogen gas initially at 29C and 7.0 L iscooled until its final volume is 2.9 L. What is its final temperature
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