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What mass of gold is produced when 7.00 A of current are passed through a gold solution for 49.0 min?
AgCl has a 78.1% ionic character and a diplole moment of 11.5D. what is the distance between the Ag and Cl atoms?
How would you prepare 3-methylheptane from either, butane, 1-bromobutane, or 2-bromobutane?
Calculate the amount of heat in kj required to convert 157.7g of water to steam at 100 dgree.
a sample of propane, contains 17.7 moles of carbon atoms. How many total moles of atoms does the sample contain.
For the equilibrium H2(g)+ CO2 (g) H20 (g) + CO(g) Kc = 3.18 at 1106K. If each of the four species was initially present at a concentration of 3.000M, calculate the equilibrium concentration of the CO(g) at this temperature
describe why benzoic acid and 4-nitroaniline must be air dried for such a long time or placed in an oven before taking a final mass and finding the melting point
A pipet delivers 10.5, 10.3, 10.9 and 10.7 ml. (a)find the mean volume and deviation from the mean for each and calculate the average deviation from the mean. (b) calculate the relative deviation (in %) for this set of data.
An object is made up of copper and zinc. The mass of the object is 46.2652g and has a density of 9.25 g/cm^3. What percentage of the object is copper. What percentage is zinc
What are the identities of the three particles (including charges). Which particle should have the smallest atomic/ionic radius, which should have the largest and why
An acetate acetic acid buffer has a pH = 5.00, containing 0.100 M NaOAc. Calculate the pH of the solution after adding 10 mL of 0.10 M NaOH to 100 mL of this buffer.
Calculate the excluded volume for one mole of molecules, which is the constant b. How does this compare with the sum of the volumes of 1 mole of the same molecule
If a pressure of one atm can support a column of mercury 760 millimeters tall, how tall a column of water will one atm support
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