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If a battery is created using zinc and electrodes along with any corresponding ionic solutions what voltage will it produce by itself? note that E for Ag^+ (aq) + e^- ---> Ag (s) is +0.80 v.
One beaker contains 10.0 mL of acetic acid/sodium acetate buffer at maximum buffer capacity and another contains 10.0 mL of pure water. Calculate the hydronium ion concentration and the pH after the addition of 0.25 mL of .10 M HCl to each one.
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?
The fuel used in many disposable lighters is liquid butane, C4H10.How many carbon atoms are in 2.00 g of buta? Express numerically in atoms
Calculate the amount of heat required to raise the temperature of 72 g of H2O from 23 degrees celcius to 115 degrees celcius
if a sample of the compound contains 9.41x10^21 lithium ions, how many oxide ions does it contain? show units, show work and answer in scientific notation.
Because the turnover number for both substrates is nearly identical, what factors might be involved that explain the different ratio for the two substrates?
What force keeps the gases of the earth's atmosphere from diffusing into interplanetary space, where the pressure is essentially zero?
A gaseous mixture of O2 and Kr has a density of 1.104 g/L at 435 torr and 300K. What is the percent of O2 in the mixture?
A direct current was passed through a solution containing alanine, Match the behavior with correct amino acid. The isoelectric point of histidine is 10.0.
If 200. mL of aqueous 0.862 M HCl is mixed with 200. mL of aqueous 0.431 M Ba(OH)2 in a constant-pressure calorimeter of negligible heat capacity.
For the titration of a weak base with a strong acid, the half titration point is reached when: Answer A. pH = pKb. B. pOH = pKb. C. pH = pOH. D. pH = pKa.
Determine the pressure in a 14.6 L cylinder filled with 0.440mol of N2 gas at a temperature of 327K.
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