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All possible reactions between planned reagents that could lead to buffer solution by fractional neutralization. Look up the suitable equilibrium constants and find out the central pH of each possible buffer.
0.2 M sodium formate [Na(CHO2)]
0.2 M potassium hydrogen phosphate [ K2HPO4]
0.2 M ammonium chloride [ NH4Cl]
0.2 M hydrochloric acid
0.2 M sodium hydroxide
Evaluate the electronic configuration for ionization energies of Magnesium, the orbital number in which the electrons are added in phosphorus ion, and the one will lose in the ionization of Alluminium.
Calculate the sodium ion concentration when 80.0 mL of 3.2 M sodium carbonate is added to 25.0 mL of 2.3 M sodium bicarbonate. Calculate the sodium ion concentration in M
an electrochemical cell is constructed at 25 c as follows. one half cell zn2zn cell that is a strip of zinc immersed in
Calculate the pH during the titration of 10.00 mL of 0.400 M hypochlorous acid with 0.500 M NaOH. First what is the initial pH (before any NaOH is added)
c2h5i alc oh- alc --gt c2h5oh alc i- alcbased on the above chemical reaction the activation energy wasdetermined to
If pH = 6.4, calculate the molar concentration of H^+ (aq) in the solution. If pH = 6.4, calculate the molar concentration of OH^-(aq) in the solution.
What is the molarity of a solution that contains 464.3 grams of phosphoric acid, H3PO4, in 3.2 L of solution
7.2 liters of an ideal gas are contained at 4.0 atm and 27 °C. Using the ideal gas law, calculate how many moles of this gas are present.
The weight of an object is the product of its mass, m, and the acceleration of gravity, g (where g=9.8 ~\rm m/s^2). If an object's mass is m=10.~\rm kg, what is its weight
hcl acid solution is standardized using 0.502g of sodium carbonate. find the molarity of the acid if 30.5ml are
Explain what is the maximum mole percent of N2 in an air mixture that could be used by divers at depths up to 85 m below sea level without undue risk of nitrogen narcosis
Given the following set of reations and their associated heats of reactions calculate delta H for the following reaction: 2NH3(g) + 3N2O(g)
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