. A 0.156 g sample of a magnesium aluminum alloy dissolves
Chapter 6, Problem 124(choose chapter or problem)
. A 0.156 g sample of a magnesium aluminum alloy dissolves completely in an excess of HCl(aq). The liberated is collected over water at when the barometric pressure is 752 Torr. After the gas is collected, the water and gas gradually warm to the prevailing room temperature of The pressure of the collected gas is again equalized against the barometric pressure of 752 Torr, and its volume is found to be 202 mL. What is the percent composition of the magnesium aluminum alloy? (Vapor pressure of water: 6.54 mmHg at and 21.07 mmHg at 23 C).
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