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Predict the sign of \(\triangle\)S for the process  6CO2 (g)   +   6H2O (g)   \(-\succ\)   C6H12O6 (g)   +  6O2 (g)      

Calculate the cell potential for the following reaction at 25 \(\circ\)C   Ni (s)   +   2Cu2+ (0.010 M)    Ni2+ (0.0010 M)   +  2Cu+  (1.0 M) The standard reduction potentials: Ni2+   +   2e-   Ni (s)                   -0.23 V Cu2+   +   1e-     Cu+ (aq)             0.16 V

Assuming equal concentrations of conjugate base and acid, which one of the following mixtures is suitable for making a buffer solution with an optimum pH of 9.2 – 9.3?

Which response includes all the following processes that are accompanied by an increase in entropy?   1. 2SO2 (g)   +   O2 (g)     SO3 (g)     2.  H2O (l)       H2O (s)     3. Br2 (l)      Br2 (g)     4. H2O2 (l) H2O (l)   +  1/2 O2 (g)

For the equilibrium reaction  2SO2  (g)   +   O2 (g)  \(\prec-\succ\)  2SO3 (g),  \(\bigtriangleup\)H\(\circ\)rxn = – 198 kJ/mol. Which one of these factors would cause the equilibrium constant to increase?

The solubility of lead (II) iodide is 0.064 g/100 mL at 20 \(\circ\)C. What is the solubility product for Lead (II) iodide?

The molar enthalpy of vaporization of boron tribromide is 30.5 kJ/mol, and its normal boiling point is 91 \(\circ\)C. What is the vapor pressure of BBr3 at 20 \(\circ\)C?   R = 0.0083145 kJ/ K\(\cdot\)mol

Calculate \(\triangle\)G\(\circ\) for the reaction   3NO2 (g)   +   H2O (l)    2HNO3 (l)   + NO (g)     \(\triangle\)G\(\circ\)f (kJ/mol) H2O (l) -237.2 HNO3 (l) -79.9 NO (g) 86.7 NO2 (g)  51.8

Nitrous oxide (N2O) decomposes at 600 \(\circ\)C according to the balanced equation   2N2O (g)   \(-\succ\)  2N2 (g)   +   O2(g)   A reaction mechanism involving three steps is shown below. Identify all of the catalysts in the following mechanism.   Cl2 (g)   \(-\succ\)   2Cl (g) N2O (g)   +   Cl (g)   \(-\succ\)   N2 (g)   +   ClO (g)  (occurs twice) ClO (g)   +   ClO (g)   \(-\succ\)  Cl2 (g)   +   O2 (g)  

For the following reaction at equilibrium, which choice gives a change that will shift the equilibrium position to favor the formation of more products?     2NOBr  (g)    \(\prec-\succ\)  2NO (g)  +   Br2 (g)    \(\bigtriangleup\)H\(\circ\)rxn = 30 kJ/mol