Calculate the final temperature
Calculate the final temperature (once the ice has melted) of a mixture made up initially of 75.0 ml liquid water at 29.0 degrees C and 7.0 g ice at 0.0 degrees C.
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How many grams of pyridine are there in 100 mL of an aqueous solution that has a pH of 9.00? The Kb for pyridine is 1.9x10^-9
How much heat, in kJ, did the body have to supply to raise the temperature of the water to body temperature (37 C)?
Why does surface complex formation with a weak acid lead to a relative maximum in the extent of surface complex formation (adsorption) at a pH which is usually near the value of -log acidity constant of the weak acid (pKHA)
How many moles of HCl must be added to 1.0 L of 1.0 M NH3(aq) to make a buffer with a pH of 9.00? (pKa of NH4^+ = 9.25)
12.0 moles of gas are in a 3.00L tank at 22.7C. Calculate the difference in pressure between methane and an ideal gas under these conditions. The van der Waals constants for methane are a=2.300L^2*atm/mol^2 and b=0.0430 L/mol.
For carbon tetrachloride, the boiling-point constant is 5.03 C x kg/mol, and the boiling point of pure carbon tetrachloride is 76.50 C.
If the vial weights 185.56 g when filled with liquid mercury (d=13.53 g/cm^3), what is its volume? How much would the vial weight if it were filled with water (d=0.997 g/cm^3 at 25 C)?
1) the symbols for the elements in the compound. 2) the oxidation numbers of the elements involved and write them as superscripts to the right of the elemental symbols
Why are London Dispersion forces of the sample molecules strongly influencing GC measurements? And why are they usually negligible in TLC experiments on silica gel?
Use tabulated thermodynamic data to calculate ?S° for the reaction: PbO2(s) + 2Ni(s) ? Pb(s) + 2NiO(s)
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