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Compute the formula mass of each compound given below. Keep at least on decimal place in atomic masses from the periodic table. Units- amu
H2O2
H2SO4
H2S
HBrO4
Calculate the standard free energy change at 25 degree Celsius with F=96,500 for 3Fe^2+(aq) + 2Cr(s) --> 3Fe(s) + 2Cr^3+(aq)
What is the pH of a buffer that results when .50 mole of H3PO4 is mixed with .25 mole of NaOH and diluted with water to 1.00 L The acid disassociation constants of phosphoric acid
What is the function of a chemical indicator. (is the answer the function is to determine if a sample solution is a base or an acid?) Why is water considered neutral
Write the complete balanced molecular, ionic, and net ionic equations for the reaction of potassium phosphate + aluminum nitrate. Which product, if any, is a precipitate
Does purified aspirin appear to be purer than crude aspirin? What is your evidence?
In an ion, the sum of the oxidation states is equal to the overall ionic charge. Note that the sign of the oxidation states and the number of atoms associated with each oxidation state must be considered.
In the following conditions calculate the moles of hydrogen and the pressure in each flask where the volume is negligible. Each flask is originally 275K with .455 mols of hydrogen gas and .7atm of pressure. Then one flask is heated to 500K while t..
From Benzenesulfonic acid, how do we "desulfonize" it? In other words, what is the reverse sulfonation mechanism. (with displacement arrows)
A mixture of 1 atm chlorine gas and 1 atm oxygen gas and no product undergoes this reaction. Cl2 + 2 O2 ---> 2 ClO2 What equation would be used to solve for the equilibrium concentrations
"Given the following standard reduction potentials, E°redAl3+/Al = -1.66 V. E°redCr3+/Cr = -0.74 V.
The relative electrophoretic mobilities of a 30-kd protein and a 92-kd protein used as standars on an SDS polyacrylamide gel are 0.80 and 0.41, respectively.
The decomposition of sulfuryl chloride is a first orded. The rate constant for the decomposition at 660 K is 4.5 X10-2 s-1. A. If we start with an initial SO2Cl2 pressure of 330 torr, Explain what is the pressure of this substance after 73 s
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