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In amperometric methods why three-electrode system, instead of a two-electrode system is used? What are the typical reference electrodes?
I require skilled aid to answer the given problem
Explain what is the equilibrium concentration of chloride ion (Cl-) in a saturated solution of silver chloride to which silver nitrate (AgNO3) is added until [Ag+] = 0.0001 M? Ksp for AgCl is 3.0X10-10
Assume 6.9 g of sulfuric acid is mixed with 3.92g of sodium hydroxide. Compute the maximum mass of sodium sulfate that could be produced by the chemical reaction.
Citric acid is a triprotic acid with pKa1=3.15; pKa2=4.77; pKa3=5.19. Calculate the concentrations of all species in solution.
Titration of an oxalate sample gave the following percentages of percent oxalate: 12.28%, 12.54%, and 12.24%. Calculate the average and the standard deviation.
What is the effect of a temperature change from 205 K to 32 degrees Celsius and a pressure change from 2 atm to 101 kPa
How much limestone must be decomposed by heating to produce 150.0 grams of lime, CaO?assuming that the limestone contains 85.0% pure CaCO3.
Consider the reaction NO + O3 → NO2 + O2 Which has a rate constant given by k = 1.8×10-12 e-1370/T cm3 molecules-1 s-1 .Use the following standard heats of formation.
If 20 moles G2 (random element) are reacted with 10 moles B2 (random element) , how many moles of G2B will be formed
Consider the following reaction, equilibrium concentrations, and equilibrium constant at a particular temperature. Determine the equilibrium concentration of NO2(g).
A rolaids tablet contains calcium carbonate which neutralizes stomach acid If 44.55mL of 0.448 M hydrochloric acid is required to neutralize one tablet how many milligrams of calcium carbonate are in a rolaids tablet
A chemist is trying to determine the amount of CaCO3 in an antacid tablet. She dissolves the tablet in water and titrates it with HCl according to the following reaction
A gas occupying 28 mL at standard conditions is heated to 13?C while the pressure is reduced to 0.84119 atm. What is the new volume occupied by the gas.
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