What is the % Yield if 3.8 g of Cu was produced?

Both 1,2−dihydronaphthalene and 1,4−dihydronaphthalene may be selectively hydrogenated to 1,2,3,4−tetrahydronaphthalene. one of these isomers has a heat of hydrogenation of 101 kj/mol (24.1 kcal/mol), and the heat of hydrogenation of the other is 113 kj/mol (27.1 kcal/mol). match the heat of hydrogenation with the appropriate dihydronaphthalene.

How many grams of co(g) are there in 74.5 ml of the gas at 0.933 atm and 30o c?

What is a difference between a mixture of elements and a mixture of compounds