A chemist uses hot hydrogen gas to convert chromium(III) oxide to pure chromium. How many grams of hydrogen are needed to

convert 76 grams of chromium(III) oxide, Cr203?

Sulfuryl dichloride may be formed from the reaction of sulfur dioxide and chlorine. so2(g) + cl2(g) → so2cl2(g) substance: so2(g) cl2(g) so2cl2(g) δh°f (kj/mol) at 298 k –296.8 0 –364.0 δg°f (kj/mol) at 298 k –300.1 0 –320.0 s°(j/k • mol) at 298 k 248.2 223.0 311.9 what is δg°rxn for this reaction at 600 k?