A 0.250-g sample of a magnesium-aluminum alloy dissolvescompletely in an excess of HCl(aq). When the liberated H2(g) iscollected over water at 29 ?C and 752 torr, the volume is found tobe 313mL . The vapor pressure of water at 29 ?C is 30.0 torr.

How many moles of H2 can be produced from y grams of Al inmagnesium-aluminum alloy? The molar mass of Al is 26.98 g/mol.

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Bunny GreenfelderLv2

17 Dec 2019

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A 0.250-g sample of a magnesium-aluminum alloy dissolves completely in an excess of HCl(aq). When the liberated H2(g) is collected over water at 29 âC and 752 torr, the volume is found to be 345 mL . The vapor pressure of water at 29 âC is 30.0 torr. A) How many moles of H2 can be produced from x grams of Mg in magnesium-aluminum alloy? The molar mass of Mg is 24.31 g/mol. B) How many moles of H2 can be produced from y grams of Al in magnesium-aluminum alloy? The molar mass of Al is 26.98 g/mol.

A 0.250- sample of a magnesium-aluminum alloy dissolves completely in an excess of . When the liberated is collected over water at 29 and 752 , the volume is found to be 305 . The vapor pressure of water at 29 is 30.0 How many moles of can be produced from grams of in magnesium-aluminum alloy? The molar mass of is 24.31 . Express your answer in terms of to four decimal places (i.e., 0.5000x).