How many liters of hydrogen gas are collected over water at 18 degrees celcius and 715mmHg when 1.14g of lithi

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How many liters of hydrogen gas are collected over water at 18 degrees celcius and 715mmHg when 1.14g of lithi

How many liters of hydrogen gas are collected over water at 18 degrees celcius and 715mmHg when 1.14g of lithium reacts with water? Aqueous lithium hydroxide also forms

2007-03-21 10:31:00 · 1 answers · asked by bigtex24769 1 in Science & Mathematics ➔ Chemistry

1 answers

Get the atomic weight of lithium and figure how many moles from the weight (1.14 grams). That becomes "n" in PV=nRT, and sovle for V to get the volume of the hydrogen. Looks like you will get 1/2 mole of hydrogen for each mole of lithium, since each hydrogen molecule will have two hydrogen atoms.

2007-03-23 07:20:14 · answer #1 · answered by A Guy 7 · 0⤊ 0⤋