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Given that HClO4 an aqueous solution is 4.8*10-^8 M, write the equation for the reaction of HClO4 , compute [H3O+], [OH-], pOH and pH b. if it is given that an aqueous solution is 0.90 M of Nitric acid with Ka = 4.5*10^-4,write equilibrium reaction for HNO2 and compute equilibrium concentrations of all species, compute pH , OH-, and the pOH
Which way should the equilibrium shift when HCl is added? How do your results support your answer . Which way should the equilibrium shift when Na2EDTA is added? How do your results support your answer?
Suppose that a student performing this experiment recorded the concentration of NaOH solution as 0.513 M, instead of the correct value of 0.531 M.
what volume of 0.100 m naoh is required to precipitate all of the nickel (II) ion from 150.0 ml of a 0.251 M solution of Ni(NO3)2
What is the estimated mass of the osmotic pressure of a polymer dissolved in benzene to give 200 mL of solution is 1.50 kPa at 25 degrees C.
When a piece of metal is irradiated with UV radiation (wavelength = 162 nm), electrons are ejected with a kinetic energy of 5.96*10^-19 J. What is the work function of the metal? (in joules)
Compute the enthalpy change for the dissolution of ammonium nitrate express your answers in units of kJ/mol.
If 2.00 moles of acetylene react completely with sufficient oxygen, how many grams of carbon dioxide are produced?
How many moles of carbon, hydrogen, & oxygen are present in a 100g sample of ascorbic acid? Ascorbic acid (vitamin C) contains 40.92% carbon, 4.58% hydrogen, and 54.50% oxygen by mass. Assume a 100 g sample of ascorbic acid.
The products of our reaction (1- and 2-heptene) can form peroxides upon standing in air for a prolonged period of time
use charles law to solve for the missing value of each of the followinga 80.0 ml t1 27 degrees c t277 degrees c. v2
Back titration with .02127 M Zn2+ at pH 5 reqired 23.54ml to reach the xylenol orage end pt. a 2.00ml sample of unknown was passed thru an ion-exchange column designed to absorb co2+. the Ni2+ that passes thru ion-exchange column was treated with ..
2 NaClO3-> 2 NaCl + 3 O2 Determine the number of moles of O2 produced by the decomposition of 213 g of NaClO3.
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