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Calculate the pH at the equivalence point when 40.0 mL of 0.100 M NH3 is titrated with 0.100 M HCl
a compound has the empirical formula ch2o. when 0.0866 g is dissolved in 1.000 g of ether the solutions boiling point
design a series of reactions to convert ethanol to 2-butanol. You can use other inorganic reagents you need, but only ethanol
The normal boiling point of water (delta H vap = 40.7 kJ/mol) is 100c. At the summit of mount Everest the boiling point of water is 70 c. Calculate the pressure in (torr) at the summit of Mount Ev.
Calculate the pH of a buffer solution that is 0.250 M in HCN and 0.170 M in KCN. For HCN, Ka = 4.9 x 10^-10 (pka = 9.31). Use the equilibirum approach to calculate
Measurements also show that a certain sample of the unknown compound contains 9.8 mol of oxygen and 3.31 mol of chromium.
Decide how many of the molecules below can also be both cis and trans ring fused by building models
The vapor pressure of methanol at 30. oC is 158 torr. What mass (in grams) of methanol actually evaporates?
suggest a procedure you could follow to determine whether it was necessary to use this solution as a reference or whether distilled water would have been just as satifactory
what is the vapor pressure of water over the solution at 90degrees celcius?
How many grams of no2 will be produced when 5.00 moles of NO react?
A weather balloon has a volume of 750 L when filled with helium at 8 degrees C at a pressure of 380 torr. What is the new volume of the balloon where the pressure is 0.20 atm nd the temperature is -45 degrees C
Draw all unique isomers of the complex [Cr(en)Cl(H2O)3]2+. Indicate whether each one is chiral or achiral. (You can abbreviate the "en" ligand as "N-N" in your drawing).
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