Estimate the value of the equilibrium constant at 540 K for each of the following reactions. Standard Thermodynamic Quantities for Selected Substances at 25∘C Substance ΔH∘f(kJ/mol) ΔG∘f(kJ/mol) S∘(J/mol⋅K) H2(g) 0 0 130.7 O2(g) 0 0 205.2 S2(g) 128.6 79.7 228.2 CO(g) -110.5 -137.2 197.7 CO2(g) -393.5 -394.4 213.8 H2S(g) -20.6 -33.4 205.8 Note that lnK=−ΔHrxn∘R(1T)+ΔSrxn∘R

The following reaction shows the products when sulfuric acid and aluminum hydroxide react. al(oh)3 + h2so4 → al2(so4)3 + h2o the table shows the calculated amounts of reactants and products when the reaction was conducted in a laboratory. sulfuric acid aluminum hydroxide initial amount of reactant 40 g 15 g theoretical yield of water from reactant 14.69 g 10.38 g what is the approximate amount of the leftover reactant? 11.73 g of sulfuric acid 10.33 g of sulfuric acid 11.12 g of aluminum hydroxide 13.67 g of aluminum hydroxide

How does the principle of electromagnetism explain the interaction between earth’s magnetic field and the solar wind?

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.