Magnesium has a density of 1.74 g/ml - which is pretty low for a metal, but still much greater than the density of the water or the HCI solution. So why did the little piece of Mg float up to the top of the tube when it broke free of the wire loop.

The mole fraction of an aqueous solution of magnesium sulfite is 0.29. Calculate the molarity (in mol/L) of the magnesium sulfite solution, if the density of the solution is 1.38 g mL^-1.

Determine the mole fraction of magnesium bromide in a 5.51 M aqueous solution of magnesium bromide. The density of the solution is 1.17 g mL^-1.

The mole fraction of an aqueous solution of magnesium sulfite is 0.29. Calculate the molarity (in mol/L) of the magnesium sulfite solution, if the density of the solution is 1.38 g mL^-1.

Determine the mole fraction of magnesium bromide in a 5.51 M aqueous solution of magnesium bromide. The density of the solution is 1.17 g mL^-1.

1. Magnesium metal reacts with HCl to produce MgCl­₂ (aq) and hydrogen gas. When 1.50 grams of magnesium metal is allowed to react with 200 mL of 6.00 M aqueous HCl, the temperature rises from 25.0 C to 42.9C. Calculate H for the reaction assuming that the specific heat of the final solution is 4.184 J/gC and the density of the solution is 1.00g/mL.