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Problem- Phosphoric acid, H3PO4(aq), is a triprotic acid, meaning that one molecule of the acid has three acidic protons. Estimate the pH, and the concentrations of all species in a 0.100 M phosphoric acid solution. pKa1 = 2.16 pKa2 = 7.21 pKa3 = 12.32need [PO43-] = ? [H+] = ? [OH-] = ? pH =?
I desire to know how this is done please illustrate all steps in detail
chlorine has two naturally occurring isotopes35cl isotopic mass 34.9689 amu and 37cl isotopic mass 36.9659 amu. if
Problem- Glucose is pumped into some animal cells by a symporter powered by the simultaneous entry of Na+. The entry of Na+ provides a free-energy input of 10.8kJ/mol under typical cellular conditions
For the following reaction: Fe(OH)2 + H3PO4 ----> Fe3(PO4)2 + H2O [Unbalanced] In a reaction, 3.20 g of Fe(OH)2 is treated with 2.50g H3PO4. If 3.62g of Fe3(PO4)2 is produced in the reaction, what is the percent yield for the reaction?
The radius of a potassium atom is 235 pm. Determine the density of potassium in g/cm3.
Calculate ?SO (universe) for the formation of 1.00 mol of HCl (g) from gaseous hydrogen and chlorine at 25 OC. Is the reaction spontaneous at that temperature
Calculate how many grams of sodium fluoride and hydrofluoric acid are needed to prepare the buffer. Calculate the pH of the buffer after 15.0 mL of 0.10 M NaOH is added to 50 mL of buffer.
A solid Silver Group (Anion) unknowon that contains only sodium ion as a catio is acidified and divided into tow portions, to both of which 6 M HC2H3O2
The following pairs of soluble solutions can be mixed. In some cases, this leads to the formation of an insoluble precipitate. Decide, in each case, whether or not an insoluble precipitate is formed.
Problem- A 1.24-g sample of a hydrocarbon, when completely burned in an excess of O2(g), yields 4.04 g CO2 and 1.24 g H2O Draw a plausible structural formula for the hydrocarbon molecule
The electrolysis of molten A12O3 at 980 ºC is used to produce metallic aluminum. A current of 777 A is used in the electrolysis cell. What is the rate of formation of aluminum, in kilograms per hour
Problem- Were the advertising claims of low alkalinity shampoo verified when compared with ordinary shampoo? Explain.
How many grams of dry NH4Cl need to be added to 2.50 L of a 0.100M solution of ammonia, NH3, to prepare a buffer solution that ahs a pH of 8.80?
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