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At a PaO2 of 65 mmHg, what is the approximate saturation of Hb with O2?

In Eastern Europe in the 1950s and 1960s, the Soviet Union responded to challenges to its control by doing which of the following?

A normal 150-Lb man is breathing at a rate of 17 with a tidal volume of 450mL. By estimation, what is his approximate alveolar ventilation?

@X@user.full_name@X@ @GMU: What is the pH of 6.69e-3 M H2SO4 ?

@X@user.full_name@X@ @GMU: By how much would the rate of reaction (see below) change if the concentration of HCOOH increased by a factor of 1.764. The rate law of this reaction is Rate = k[Br2].HCOOH(aq) + Br2(aq) → 2Br-(aq) + CO2(g)

@X@user.full_name@X@ @GMU: The reaction below is an endothermic reaction. What would one have to do to shift the equilibrium to the right?[Co(H2O)6]Cl2(aq)→[CoCl2(H2O)4](aq) + 2H2O(g)

@X@user.full_name@X@ @GMU: What is the pOH of 1.05e-5 M HBr?

@X@user.full_name@X@ @GMU: NO2 at 378°C decomposes to form NO and O2 according to second order kinetics (see reaction below). The half-life for this reaction was measured to be 2.56e1 s when the initial concentration of NO2 was 9.54e-3 M. What is the rate constant for this reaction?2NO2(g) → 2NO(g) + O2(g)

@X@user.full_name@X@ @GMU: In which substance is the intermolecular bonding best described as hydrogen bonding?

@X@user.full_name@X@ @GMU: What is the concentration of OH- in 0.1106 M CH3COOH ? See reaction belowCH3COOH + H2O → CH3COO- + H3O+ Ka = 1.760×10-5