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If you are told that the purity of compound Z is 87% and the reported value for its molar extinction coefficient is 9200 M -1 cm -1 at 605 nm. What should you measure as the e of this impure compound Z?
The molar mass for NaCl and water are 58.443 g/mol and 18.015 g/mol, respectively. Calculate the partial molar volumes for NaCl and water in a 0.35m solution
Determine the element of lowest atomic number that contains a complete d subshell in the ground state. element symbol
The recovery of CaCo3 was attempted by adding #m H2SO4 instead of 3M HCL to the SiO2/ CaCO3 residue.
Calculate the amount of 0.018 M KMnO4 solution required to completely oxidize 39.69 ml of .100 M FeSO4 in an acidic solution according to the following equation
Given that an atom of a semiconductor has a diameter of 3.10 A, what is the maximum number of moles that fit in the channel of a processor chip that is 79.9 nm long, 76.1 nm wide and 315 nm thick
calculate the osmotic pressure associated with 50.0 g of an enzyme of molecular weight 98,000 g/mole dissolved in 2600 mL
the pH at the equivalence point and the pH after adding 6.0 mL of acid beyond the equivalence point
If the pressure of a gas is 39.18 atm in a piston, what is the final pressure, in atm, if the volume of the piston is multiplied by 4 at a constant temperature?
What quantity of heat would be evolved if 75.00g of mercury (Hg=200.59), (O=16.00) was burned in oxygen?
write a short experiemental procedure that would allow the two ions to be separated and includes a confrimatory test for verifying the presence of each ion.
Determine the percent yield for this reaction as N2(g) + 3 H2(g) ? 2 NH3(g)
Two samples of copper and lead both weighing 1.500g each recive equal amounts of heat. The temp. of copper increased from 25.0 degrees celcius to 30.0 degreees celcius.
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