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Using the Nernst equation, calculate the effect on the cell potential of increasing the Fe2+ ion concentration from 1.0 M to 2.0 M for each of the following reactions. The concentration of the other solution remains at 1.0 M
Fe+2(aq) + Zn(s) ? Fe(s) + Zn2+ (aq)
Fe(s) + Cu2+ (aq) ? Fe2+ (aq) + Cu(s)
When heated gently with methanol, compound B, C5H8O4, is obtained. Compound B has IR absorptions at 2500-3000 (broad), 1730, and 1701 cm-1, and its proton NMR spectrum in D2O consists of resonances at d 2.7
What is the atomic mass of unknown element X if it has the following isotopic composition.
how many grams of ice will still be present when the contents of the pitcher reach final temperaturethe tea is mostly water so assume that it has the same density (1g/mL), molar mass, heat capacity (75.3J/K/mol), and heat of fusion(6 kJ/mol) as pu..
1) If air oxidation of 92.0% iron to ferric oxide is 87.0% efficient, what mass of this iron is required to make 3.00 moles of ferric oxide?
Propose a structure for an amine of formula C4H9N, which liberates a gas when treated with NaNO2 and HCl. The 13C NMR spectrum is as follows
Assuming that the total pressure of the gases is 1.52 and that their mole ratio is 94 : 4.0 : 1.5 : 0.50, calculate the partial pressure (in atmospheres) of each gas.
Alka-Seltzer contains both baking soda (NaHCO3) and citric acid (H3C6H5O7). The reaction between the bicarbonate ion and citric acid produces water
a certain liquid has dH(vap)=26.0kJ/mol. calculate the q,w,dH and dU when 0.50 mol is vaporized at 250K and 750torr
How much heat in kilojoules is evolved in converting 2.00 mol of steam at 150 to ice at -35.0? The heat capacity of steam is 1.84 and that of ice is 2.09 .
If the sunlight consists of photons with an average wavelength of 510.0 nm, how many photons strike a 3.20 cm2 area per second?
Write equations for the reaction of the glyceride written in question 1 above with each of the following: a. an aqueous solution of sodium hydroxide b. hydrogen in the presence of a catalyst and at elevated temperature and pressure c. a 5% solutio..
the structure of a protein by both NMR and X-ray crystallography and they differ in one region. Which is more likely to be the true structure of the protein when dissolved in solution? Why?
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