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1) Allocate each element an oxidation number
2) Find out which reactant is being oxidized and which is being reduced
3) Find out which reactant is the oxidizing agent and which is the reducing agent
Zn+2HNO3 = Zn(NO3)2 + H2
What is the rate of the reaction if [A] is doubled. Starting with the original concentrations, what is the rate of the reaction if [B] is doubled
assuming the temperature is constant predict whether the change in entropy delta s is positive negative or zero during
How will you prepare the following solutions from 6.0 M solution of acetic acid? Give exact details. Assume that a 10-mL graduated cylinder (in which volumes can be read to the nearest 0.1 mL) and a 100-mL graduated cylinder are available.
Calculate the ratio of NaF to HF required to create a buffer with pH = 4.10. Calculate the ratio of CH3NH2 to CH3NH3Cl required to create a buffer with pH = 10.22
what is the charge of the carboxyl group in an amino acid at physiological pH. Please explain the charge. Also what is the charge above and below physiological pH
a 15.0-g sample of a hydrocarbon is placed in a balloon at 1.00 atm and 25degc and the volume of the balloon is 12.2 l.
why do we have to make sure we light the fire and remove the lighter quickly to burn the nuts
a plant manufacturing nails and screws uses a large pool volume 10000 l to collect and treat its residual waste water
The method of standard additions was used to determine nitrite in a soil ample. an aliquot of 1.00 mL of the sample was mixed with 24.00 mL of a colorimetric reagent, and the nitrite was converted to a colored product with an absorbance of 0.300.
For the reaction: H2SO4(aq) + 2 KOH(aq) --> K2SO4(aq) + 2 H2O To find the concentration of H2SO4, a 25.00 mL sample was titrated with 0.8752 M KOH. It took 31.79 mL of KOH to reach the endpoint of the reaction. What is the concentration of the H2S..
Determine the final concentration of each of the following solutions after 20.0mL of water has been added.
At what point during a titration of a weak acid with a strong base does the pH = pKa? What ratio would cause pH pKa & pH pKa
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