An experiment requires 43.0 g of ethylene glycol, a liquid whose density is 1.114 g/mL. Rather than weigh the sample on a balance, a chemist chooses […]
Assuming that the equatorial radius is 6378 km = 3963 miles, the spin speed near the equator (latitude 0 deg) is 1037.5 mil/’h =1669.7 km/h, nearly. […]
Magnetite is a mineral having the formulaFe3O4 or FeOFe2O3. A 1.1324-gsample of a magnetite ore was dissolved in concentrated HCl to givea solution that contained a […]