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What is the pH at the equivalence point in the titration of 0.250M HX (Ka=6.2x10^-8) with 0.250M KOH?
How much work is needed to send 2.5 gal/hr of fuel through a 8mm line with a .09mm nozzle at 1500 psi absolute coming from a fuel tank at 1 atm absolute
The human body obtains 1078 kJ from a candy bar. If this energy were used to vaporize water at 100°C, how much water in liters could be vaporized?
Do a calculation to check the claim that to fully neutralize 17,000 tons of CaCO3 would require enough 0.0005 M H2SO4 to fill 8 millions swimming pools.
The molar mass of an oxygenated hydrocarbon substance is 88.0 g / mole.Its composition is as follows:O:36.4%,H :9.0%,C:54.6%. Calculate the empirical formula and molecular formula.(use atomic mass C=12.0,H=1.0,O=16.0)
Write out the reaction mechanism for conversion of acetylferrocene to diacetylferrocene using acetic anhydride and 85% phosphoric acid.
Why are some covalent bonds polar and others aren't? Understand why the covalent bonds of water are polar and those in the hydrogen molecule (H2) are non-polar.
What would be the pressure of the gas, in kPa, if it were transferred to a container at 24 degrees Celcius whose volume is 55.0 L.
after the correct formula for a reactant in an equation has been written , what can be changed to balance the equation?
A gas is initially at 1.2 atm, 15.0 L, and O°C. What is the final pressure when the same amount of gas is heated to 10°C and the volume changed to 13.0 L
a couple drops of phenophalein indicator and then was titrated with 8.1mL of NaOH until it turned pink. what is the concentration of NaOH?
Write a balanced chemical equation for the reaction of C with SO2 to form CS2 and CO. How many moles of SO2 and CO are there? a. 2 moles of SO2 and 4 moles of CO
Is dissolving KHT at 25.0 celsius spontaneous or non spontaneous; is there a temperature for this system where delta G=0?
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