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A reaction in which A, B, and C react to form products is zero order in A, one-half order in B, and second order in C.
By what factor does the reaction rate change if [A] is doubled (and the other reactant concentrations are held constant)?
By what factor does the reaction rate change if [B] is doubled (and the other reactant concentrations are held constant)?
By what factor does the reaction rate change if [C] is doubled (and the other reactant concentrations are held constant)?
By what factor does the reaction rate change if the concentrations of all three reactants are doubled?
The first ionization potential of potassium is 419 kJ/mol. If UV-?radiation with wavelength ? = 250 nm is used to eject electrons from potassium
Identify the conjugate base of each of the following compounds: HNO2, HClO, H3PO4, and NH3. Identify the conjugate acid of each of the following species: NH3, ClO2-, SO4^2-, and OH-
A brand of lunchmeat contains 0.11% by mass of a preservative, sodium benzoate, C6H5COONa. Health Canada recommends a an upper level intake of Na to be 2300 mg
The first four ionization energies of an atom X are 590, 1145, 4912 and 6491 kJ/mol. Suggest to which periodic group X belongs and give reasons for your choice. Write out possible chemical equations that correspond to these transformations.
write the structural formula of organic product that would result from the reactionch3-chch2
Given the following Delta H°298 values in kcal/mol , where "gr" stands for graphite, find Delta f H°298 of Fe(s) and Fe2O3(s) Fe2O3(s) + 3C (gr) --> 2Fe(s) + 3CO(g) 117 FeO(s) + C(gr) --> Fe(s) +CO(g) 37 2CO(g) + O2(g) --> 2CO2(g) -135 C(gr) + O2(..
A 0.7549g sample of a pure hydrocarbon burns in oxygen gas to produce 1.9061g of carbon dioxide and 0.3370g of water.
To the solution in problem 1 (d) at 100 degrees celsius, 10g of water are added, and the solution is cooled to 0 degrees celsius... (problem 1d: the number of grams of water required to dissolve a mixture containing 15 g KNO3 and 3.5 g CuSO4 * 5 H..
A 15.0- mL sample of 0.100 Ba(OH)2 is titrated with 0.125 M HCl. Calculate the pH for at least five different points throughout the titration curve and make a sketch of the curve.
Predict the products of the following acid-base reactions, and predict whether the equilibrium lies to the left or to the right of the equation.
The dimensions of aluminum foil in a box for sale in supermarks are 66 2/3 tards by 12 inches. the mass of the foil is 0.83kg. If its density is 2.70g/cm^3
What is the heat change of a 25 g block of iron that starts at a temperature of 22 degrees C and increases to 79 degrees C?
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