Ответ:
Ba(OH)₂ + 2HNO₃ ⇒ Ba(NO₃)₂ + 2H₂O
m = n×M
M(Ba(NO₃)₂) = 137 + 28 + 96 = 261 г/моль
n = m/M
M(Ba(OH)₂) = 137 + 2+ 32 = 171
n(Ba(OH)₂) =50/171 = 0,292
n(Ba(OH)₂) = n(Ba(NO₃)₂) = 0.292
m(Ba(NO₃)₂) = 0,292 × 261 =76,212 ≈ 76г
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Ответ:
Ba(OH)₂ + 2HNO₃ ⇒ Ba(NO₃)₂ + 2H₂O
m = n×M
M(Ba(NO₃)₂) = 137 + 28 + 96 = 261 г/моль
n = m/M
M(Ba(OH)₂) = 137 + 2+ 32 = 171
n(Ba(OH)₂) =50/171 = 0,292
n(Ba(OH)₂) = n(Ba(NO₃)₂) = 0.292
m(Ba(NO₃)₂) = 0,292 × 261 =76,212 ≈ 76г