One application of Hess's Law (which works for ΔH, ΔS, and ΔG) is calculating the overall energy of a reaction using standard energies of formation of products and reactants. What is the standard change in free energy for the reaction: 4 KClO3(s) → 3 KClO4(s) + KCl(s)? Use the following standard gibbs energies of formation: ΔGf(KClO3(s)) = -290.9 kJ/mol; ΔGf(KClO4(s)) = -300.4 kJ/mol; ΔGf(KCl(s)) = -409 kJ/mol

Select the correct answer. given: 2libr + ba → babr2 + 2li in this chemical reaction, 325 grams of barium (ba) react completely. how many moles of lithium (li) are produced? a. 1.18 mol b. 2.37 mol c. 4.73 mol d. 16.4 mol e. 32.9 mol

Lab reagent, hypothesis test. a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl. these six measurements are assumed to be an srs of all possible measurements from solution. they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution. carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.

What mass of glucose is produced when 54g of water react with carbon dioxide