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An AM station broadcasts rock music at "951 on your radio dial." Units for AM frequencies are given in kilohertz (kHz). Find the wavelength of the station's radio waves in meters (m), nanometers (nm), and angstroms (Å).
Estimate the overall charge on the following proteins at pH 3, 7, and 10. If a mixture of these three proteins were run on an IEF gel, what would the gel look like
Calculate delta H^degree (in kilojoules per mole) for benzene,C6H6 , from the following data: 2C6H6(l)+15O2(g)---->12CO2(g)+6H2O(l), delta H^degree= -6534 kJ
explain why nitration occurs more rapidly in a mixture of concentrated nitric and sulfuric acids than in concentrated nitric acid alone
How do you know when an element that is by itself has an oxidation number of zero or its charge
design a qualitative analysis scheme that will be used to calculate which cations are present in a solution containing
when sulfuric acid is a component of polluted air it chemically attacks statues memorials and monuments made from
Acetylene gas (C2H2) is produced as a result of the following reavtion. CaC2(s) + 2H2O(l) yield C2H2(g) +Ca(OH)2(aq)
Containers of rubbing alchohol and ammonia are opened simultaniosly in a room. Which will you smell first and why?
If 125 calories of heat is applied to a 60.0 grams piece of copper at 21.0 degrees Celsius, what will the final temperature be? The specific heat of copper is 0.0920 calories per grams times Celsius.
What mass of solid sodium formate (of MW 68.01) must be added to 140 mL of 0.3 mol/L formic acid (HCOOH) to make a buffer solution having a pH of 3.77? Ka = 0.00018 for HCOOH.
calculate the heat energy released when 15.1g of liquid mercury at 25 degrees C is converted to solid mercury at its melting point
the approximate equivalence point of a ph meter titration before before carrying out the ph titration
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