Qual a massa necessária de Ca(OH)2 para reagir…
(FGV-SP) Balanceando-se a reação Aℓ2(SO4)3 + 3 Ca(OH)2 → y Aℓ(OH)3 + z CaSO4 corretamente, obtêm-se os valores de y
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(FGV-SP) Balanceando-se a reação Aℓ2(SO4)3 + 3 Ca(OH)2 → y Aℓ(OH)3 + z CaSO4 corretamente, obtêm-se os valores de y
Read MorePara analisar uma solução de sulfato de alumínio tomou-se uma alíquota de 50 mL desta solução e se precipitou o
Read More(Química 2, Martha Reis) Uma solução aquosa de sulfato de alumínio foi preparada de modo que cada 100 mL de
Read More(UCSAL-BA) Na reação de óxido de alumínio com ácido sulfúrico forma-se sulfato de alumínio, Aℓ2(SO4)3. Para se obterem 3 mols
Read More(CEFET-PR) Em uma das etapas de tratamento da água, ocorre a retenção de partículas sólidas em uma massa gelatinosa constituída
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