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(a) Select all of the correct statements about the relative acid strengths of pairs of acids from the choices below. HCl is a stronger acid than H2S because Cl is more electronegative than S. H3PO3 is a stronger acid than H3PO4 because it has fewer oxygens surrounding the central P atom. H2C2O4 is a stronger acid than HC2O4- because it has more acidic hydrogens. HI is a stronger acid than HCl because I atoms are larger than Cl atoms. H3AsO4 is a stronger acid than HAsO42- because it has more acidic H atoms. AsH3 is a stronger acid than HBr because As is larger than Br.
A solution is 0.10 M AgNO3 and 0.10 M Ba(NO3)2. If solid Na2SO4 is added to the solution, what is [Ba2+] when Ag2SO4 begins to precipitate? (Ksp BaSO4 = 1.1 x 10-10; Ag2SO4 = 1.1 x 10-5)
Calculate the work(in kilojoules) done during a synthesis of ammonia(see reaction below) in which the volume contracts from 8.6L to 4.3L at a constant external pressure of 44atm. (Note: be careful what units you use, SI units needed) N2(g) + 3H2(g..
Calculate the [H+] and pH of a solution made by mixing 30.00mL of 0.238 M CH3COOH with 30.00mL of 0.250 M CH3COONa. (Ka for acetic acid = 1.8x10^-5)
If a 189-mg piece of gold (density = 19.32 g/cm3) is hammered into a sheet measuring 2.4 ft 1.0 ft, what is the average thickness of the sheet in meters?
What is the maximum mass, in gram, of Fe3O4, that can be produced from this reaction? B)If 3.26 g of Fe3O4 are actually made, what is the percent yield of this process
Calculate the mass of nitrogen dissolved at room temperature in an 92.0L home aquarium. Assume a total pressure of 1.0 atm and a mole fraction for nitrogen of 0.78.
cannot be dehydrated to an alkene without rearrangement. What is the chief product of dehydration?
What is the correct charge balance equation for an aqueous solution of MnCl2 that ionizes to Mn2 , Cl-, MnCl , and MnOH.
Calculate the energy of a photon emitted when an electron in a hydrogen atom undergoes a transition
Determine how many grams of C 6 H 12 O 6 should be mixed in 563 grams of C 2 H 5 OH) to form a 2.40X10^-2 m solution?
What type of interaction does Ultraviolet, Visible, and Infrared regions of the spectrum have with matter?
sample of a 0.116M potassium sulfate solution is mixed with 38.5mL of a 0.126M lead(II) acetate solution and this precipitation reaction occurs:
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