what mass of ai is produced when .0500 mol of Au2S3 is reduced completelywith excess H2?

0 ⤊

a. 9.85 g
b 19.7g
c. 24.5
d 39.4
e.48.9

2007-01-07 17:07:47 · 2 answers · asked by robert m 1 in Science & Mathematics ➔ Chemistry

hey its not ai its Au

2007-01-07 17:27:10 · update #1

Au2S3 + 3H2 ==> 2Au + 3H2S

the moles of Au 0.05 * 2 = 0.1
the mass of Au produced 0.1 * 197 = 19.7g
thus b is the correct answer

2007-01-07 17:26:08 · answer #1 · answered by James Chan 4 · 0⤊ 0⤋

You need to reask your question. What is "ai"?

I think this is a typo.

2007-01-08 01:21:06 · answer #2 · answered by CAROL P 4 · 0⤊ 0⤋