Ответ:
дано
m(Al) = 9.45 g
----------------------
m(AL(OH)3)-?
2Al+3S-->Al2S3
AL2S3+6H2O-->2Al(OH)3↓+3H2S
M(Al) = 27 g/mol
n(Al) = m/M = 9.45 / 27 = 0.35 mol
2n(Al) = 2n(Al(OH)3) = 0.35 mol
n(AL(OH)3) = 0.35 mol
M(AL(OH)3) = 78 g/mol
m(Al(OH)3) = n*M = 0.35 * 78 = 27.3 g
ответ 27.3 г
Объяснение:
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Answers & Comments
Ответ:
дано
m(Al) = 9.45 g
----------------------
m(AL(OH)3)-?
2Al+3S-->Al2S3
AL2S3+6H2O-->2Al(OH)3↓+3H2S
M(Al) = 27 g/mol
n(Al) = m/M = 9.45 / 27 = 0.35 mol
2n(Al) = 2n(Al(OH)3) = 0.35 mol
n(AL(OH)3) = 0.35 mol
M(AL(OH)3) = 78 g/mol
m(Al(OH)3) = n*M = 0.35 * 78 = 27.3 g
ответ 27.3 г
Объяснение: