Author: Anonymous

When this equation is balanced with the smallest set of whole numbers, what is the coefficient for N2H4? ___N2H4(g) + ___N2O4(g) → ___N2(g) + ___H2O(g)

For the reaction: H2(g) + C2H4(g) → C2H6(g) a series of experiments were conducted as shown in the table. If the rate law was found to be rate = k[H2][C2H4], what is the missing initial rate (marked with the “?” in the table)? Initial rate / M·s–1 [H2]0 / M [C2H4]0 / M 0.0148 0.125 0.125 0.0301 0.250 0.125     ? 0.250 0.250  

For the reaction of: CH3NC(g) ⇌ CH3CN(g)   Kc = 11 What is the equilibrium concentration of CH3CN if the flask initially contains only 0.56 M CH3CN?

Give the correct name for FePO4.

A Bohr model of an atom of hydrogen is shown in the figure. Which transition(s) depicted by arrows result in energy emission, found as a line in the atomic emission spectrum?  

What amount of Al2O3 is produced from the reaction of 3.0 mol Al with 2.0 mol Fe2O3? 2Al + Fe2O3 → Al2O3 + 2Fe

For the reduction of silver with hydrogen: 2Ag+(aq) + H2(g) → 2H+(aq) + 2Ag(s) Given the thermodynamic data in the table, what is the standard change in Gibbs free energy for this reaction at 298 K?   ΔHfo / kJ∙mol–1 So / J∙mol–1∙K–1 Ag+(aq) 105.58 72.68 Ag(s) 0 42.55 H2(g) 0 130.68 H+(aq) 0 0  

What isotope is depicted in the figure?      

For the decomposition of mercury(II) oxide, HgO, to mercury and oxygen: 2HgO(s) → 2Hg(l) + O2(g)   ΔGo = 117.1 kJ What is the standard Gibbs free energy of formation (ΔGfo) of mercury(II) oxide?

Which solution all at 25 oC will have the highest vapor pressure? Assume all solutions are ideal.