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Describe how the solid phase speciation (i.e., chemical form) of lead affects its bioaccessibility in the human digestive tract
what would be the saturation concentration molel of oxygen o2 in a river in winter when the air temperature is 0degc if
captain kirk of the starship enterprise, has been told by his superiors that only a chemist can be trusted with the combination to the safe containing the dilithium crystals that power the ship.
if the reaction rate doubles when the temperature is increased to 35 circ rm c what is the activation energy for this
At a particular temperature, K = 4.0 x 10^-7 for the reaction N2O4(g) ---> 2NO2(g). In an experiment, 1.0 mol N2O4 is placed in a 10.0L vessel. Calculate the concentrations of N2O4 and NO2 when this reaction reaches equilibrium.
Calculate the energy change in kilojoules per mole when lithium atoms lose an electron to bromine atoms to form isolated Li+ and Br- ions. [The Ei for Li(g) is 520 kJ/mol; the Eea for Br(g) is -325 kJ/mol.]
Treatment of A with aqueous H2SO4 and Hg(II) gives a single ketone, C, C10H16O. Oxidation of A with KMnO4 gives CO2 and the keto carboxylic acid D shown below. Propose a structure for A.
If the step for digesting the precipitate were omitted, will the reported "percent limiting reactant" in the salt mixture be too high, too low, or unaffected
Draw the flow of e- and the products of the Methoxide Ion and water including formal charges on all compounds.
Question- What mass of lead sulfate is formed in a lead-acid storage battery when 1.06g of Pb undergoes oxidation
A 10 gram sample of the ionic compound NaA, where A is the anion of a weak acid was dissolved in enough water to make 100 ml of solution and was then titrated with 0.1 M HCL
Question- Draw the molecule by placing atoms on the grid and connecting them with bonds. Include all lone pairs of electrons.
terephthalic acid is an important chemical used in the manufacture of polyesters and plasticizers. it contains only c h
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