subject
Chemistry, 26.06.2021 22:50 mcaninch36

5 – (PUC-PR) Uma célula galvânica é constituída de 2 eletrodos: 1º eletrodo: 1 lâmina de ferro metálico submersa numa solução de FeSO4 1M. 2º eletrodo: 1 lâmina de prata metálica submersa numa solução de AgNO3 1M. Sabendo-se que os potenciais normais de redução desses dois elementos são: Fe+2 + 2e-→ Fe E0 = - 0,44 V Ag+ + 1e- → Ag E0 = + 0,80 V88 O potencial dessa célula, quando os dois eletrodos são ligados entre si internamente por uma ponte salina e externamente por um fio de platina, será: a) + 0,36 V. b) - 0,36 V. c) - 1,24 V. d) - 1,36 V. e) + 1,24 V.

ansver
Answers: 3

Another question on Chemistry

question
Chemistry, 22.06.2019 19:00
How does a catalyst increase the speed of a reaction? a. the catalyst eliminates the activated complex stage, allowing products to form immediately. b. the catalyst lowers the energy level of the reactants, making it easier for them to react. c. the catalyst makes it easier for the activated complex to form, lowering the activation energy. d. the catalyst raises the energy level of the products, making the reaction finish sooner. reset next
Answers: 1
question
Chemistry, 23.06.2019 12:50
What affects a material's resistance
Answers: 2
question
Chemistry, 23.06.2019 12:50
Which of these describes the rate of this chemical reaction? h2 + cl2 → 2 hcl a. an increase in the concentration of hcl and h2 with time b. an increase in the concentration of hcl with time c. an increase in h2 and cl2 with time d. a decrease in hcl and cl2 with time
Answers: 1
question
Chemistry, 23.06.2019 17:00
Which of the following has potential energy but no kinetic energy? longitudinal sound waves an arrow shot from a bow a compressed spring a vibrating atom
Answers: 1
You know the right answer?
5 – (PUC-PR) Uma célula galvânica é constituída de 2 eletrodos: 1º eletrodo: 1 lâmina de ferro metál...
Questions
question
History, 11.10.2021 16:30
question
Mathematics, 11.10.2021 16:30