predict-which-combination-of-metals-in-exercises-3-and-4-will-result-in-the-greatest-voltage-expla-2

Name: predict which combination of metals in exercises 3 and 4 will result in the greatest voltage expla 2
Uploaded: 2020-10-19
Duration: 2 min 17 s
Channel: Numerade
Description: Predict which combination of metals in Exercises 3 and 4 will result in the greatest voltage. Explain your prediction. h en calculate the voltages of the redox reactions. Was your prediction correct?

Question

Predict which combination of metals in Exercises 3 and 4 will result in the greatest voltage. Explain your prediction. h en calculate the voltages of the redox reactions. Was your prediction correct?

David Collins · Accepted Answer

question Number five now asks us to look at the chemical reactions involved in the electrochemical cells for problem three and four. So there are a total of four electrochemical cells and calculate the electrochemical potentials. But before calculating them, you are asked to predict which one will have the greatest electrochemical potential or the greatest voltage associated with it. To answer that, we simply need to look at the activity Siri&#x27;s and find the two medals that air farthest from each other on the activity. Siri&#x27;s, the two medals that air farthest from each other on the activity. Siri&#x27;s will result in the greatest voltage for the electrochemical cell. It turns out, aluminum and silver are farthest from each other on the activity, Siri&#x27;s. Then we need to go to the standard reduction potential table, which is a page down in your textbook, and we can actually calculate the electrochemical potentials after looking at that, um, a standard reduction potential table. It turns out that many a few of the metals are not present. When I was talking about was iron going toe iron three plus. So we&#x27;ll have to assume iron going toe iron two plus and then you may need to get on the Internet to find some other standard reduction potentials. S l is going to be whatever serving us the cathode, which we defined in those previous problems. So you could go back and look the cathode potential minus theano potential. And we get positive. 2.46 volts for copper and tin SL is going to be cathode potential minus and potential. We get 0.195 volts for the next one. It&#x27;s copper and lead. So the cathode potential minus theano potential. We get positive 10.47 and then calcium and iron will assume iron two. Plus, we&#x27;ve got cathode potential minus and potential. We get 2.42 So, yes, I predicted that aluminum in the silver would result in the largest voltage for the electrochemical cell. And it does, but just barely.

Kyle Gassaway · Answer

all right to tell if hydrogen will be able to reduce either of these metals or not. We need to look at their standard reduction potentials. So first off, we&#x27;ve got a reaction where we&#x27;ve got copper optic side, which is solid with hundreds in two gas, and we have sodium oxide and hydrogen the gas. So looking up, so standard reduction potentials tell us whether or not something will be able to reduce something else. So hydrogen has standard reduction potential. Zero The definition. So that means, is that if something has a positive standard reduction potential, hydrogen will be able to reduce it. But if that material has a negative standard reduction potential than hydrogen won&#x27;t be able to reduce it. For instance, copper come for two plus has a standard reduction potential positive 0.15 whereas sodium plus has a standard production potential of negative to 0.17 Now, just from a mental standpoint alone, that should make sense because copper as a metal copper is a transition metal, meaning that it has a lot of electrons and it&#x27;s de shell. So it&#x27;s a lot less picky about how maney electrons it has sodium on the other hand, is an alkaline metal. That means that it really wants to lose one extra electron. So as the positive sodium ion really doesn&#x27;t want to pick that extra electron again. So because of this, that means that copper oxide will form copper, the metal plus H +20 Because hydrogen can reduce it, However, this will not form the sodium metal because hydrogen can&#x27;t reduce sodium oxide.

Arpit Gupta · Answer

No. We have to predict the outcomes of the following reactions as given in the question it see you all so late. Bless H two. Guess would work and B is given as and do this is and a two who so lead plus edge to off gas. So here in this section, C u oxide off solid pillars Hydrogen in the Gacy&#x27;s form the foam as see you Bliss H two no. Here. See you. Oh, is in a reduction process where this has to toe edge tool is in the oxidation process. So here this issue is acting as a reducing agent, No, any to hopeless edge to PC that the outcome would come as similar. And a Phyllis H 20 here this any word we in a rejection and this edge to will act as a reducing agent and will oxidize itself. So this is the oxidation process. So in any oxidation process, the element itself get redus in the oxidation process. The element itself get oxidize and reduce the frank when element there is in the reduction process. So this is the answer of the question

Dr. Bridgette Drummond · Answer

Redox reaction is short for reduction and oxidation reaction and occurs when an electron is transferred from an Adam. In a reaction. Counterintuitively, even Adam gains an electron. It is said to be reduced, but if it loses an electron, it is said to be oxidized in the following reaction. Reactant B plus an age to form products A, B, H and H pulse. The first pair of electrons in age too, are transferred to be, which is positively charged and looking to pick up electrons to form B H. So in this case, B is being reduced because it&#x27;s gaining electrons and a is being oxidized because it&#x27;s losing electrons. The second set of electrons remain with a, and it leaves this other age as positively charged and devoid of electrons. So H is also being oxidized. If this is an ex organic reaction, we need to pay attention to the the reactant because they have the highest potential energy. And if we&#x27;re to identify which substance has the highest energy electrons, we would naturally pick a age to because they drive the reaction

Nilay Sebat · Answer

Hello, everyone. Today we&#x27;re doing problem 16 from Trusted for So we have for this whether the falling reactions will occur, we have to h plus a Q reacting feet solid and that&#x27;s going to yield each to Jeep was PT two plus eight Q. So to figure this out, we have to look at our activity. Siris. So honor activity. Siri&#x27;s well, number one. But Petey, there&#x27;s going to be belittle hydrogen. All we have an activity. Siri&#x27;s in your textbook to look at. So since Petey is below hydrogen, that means that this will not occur. This reaction will monitor because that reactivity is not there. PT would have to be above hydrogen for to react. So we look at being We apply the same method we have C A two plus plus mg solid that&#x27;s gonna yield. See a sorry calcium solid and m g two plus. So when we look at this again, we have calcium here and we have mg again right below it. So that means that this reaction will also not occur. You need to have magnesia

Ronald Prasad · Answer

let&#x27;s use the activity too serious to determine whether falling reactions will occur or not. For a we have any plus Equus plus zinc solid. Looking at the activity. Siri&#x27;s zinc is at the bottom of the T ball. Uh, president of the bottom of the table, the facility Mayan. So this is no reaction for be We have HCL, Equus and platinum solid on Dhere. Platinum is at the bottom of the activity Siri&#x27;s and it does not replace hydrogen on this One is also no reaction. So platinum will not replace hydrogen. The lower activity E g plus for C and gold solid. Looking at the activity. Siri&#x27;s um gold is below silver. So no reaction again. And for D Wade have gold three plus and silver solid on dhere. Um, silver is higher than the gold. So this reaction does occur and we will get, uh, three A. You so it should be three here. Sorry, a you. They&#x27;re a g plus acquis and called solids. This really

Problem

What are the pros and cons of using combustion re…

Problem 5 Easy Difficulty

Predict which combination of metals in Exercises 3 and 4 will result in the greatest voltage. Explain your prediction. h en calculate the voltages of the redox reactions. Was your prediction correct?

Answer

$=+2.46 \mathrm{~V}$

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$=+2.46 \mathrm{~V}$

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