insane question - achiever

[dat_student]

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A cell employs Zn and Cu electrodes...

Without a reduction table and without knowing Es how can one figure out if it's
1) Cu(s) | CU2+ || Zn2+ | Zn(s)
or
2) Zn(s) | Zn2+ || Cu2+ | Cu(s)
?????????????????????????????????

I hope the author doesn't suggest memorizing all the E values which are obtained experimentally.

 

[Flipper405]

A cell employs Zn and Cu electrodes...

Without a reduction table and without knowing Es how can one figure out if it's
1) Cu(s) | CU2+ || Zn2+ | Zn(s)
or
2) Zn(s) | Zn2+ || Cu2+ | Cu(s)
?????????????????????????????????

I hope the author doesn't suggest memorizing all the E values which are obtained experimentally.

lol, I don't understand anything about this question 😕

 

[mochafreak]

A cell employs Zn and Cu electrodes...

Without a reduction table and without knowing Es how can one figure out if it's
1) Cu(s) | CU2+ || Zn2+ | Zn(s)
or
2) Zn(s) | Zn2+ || Cu2+ | Cu(s)
?????????????????????????????????

I hope the author doesn't suggest memorizing all the E values which are obtained experimentally.

can't remember if I got that right or not, but I think he expects us to realize that is the Daniel cell and just know that it's choice 2 from chem lab or something.

 

[dat_student]

can't remember if I got that right or not, but I think he expects us to realize that is the Daniel cell and just know that it's choice 2 from chem lab or something.

What drives me nuts is that some of these authors just want to make their tests difficult...Sometimes they end up writing bad questions:

Take a look at this question:

Which entirely relies on anatomical measures:

Synapomorhies (it's not a typo)
Parsimony
Phenetics [x]

Guess what?

Phenetics doesn't rely entirely on anatomical features.

"Phenetics is an attempt to classify organisms based on overall similarity, usually in morphology or other observable traits, regardless of their phylogeny or evolutionary relation."

Based on this definition, how can one say "phenetics" entirely relies on anatomical feautues????!!!!!!!!!!!!!

I think "comparative anatomy" is the right answer and this is not one of the answer choices.

 

[mochafreak]

What drives me nuts is that some of these authors just want to make their tests difficult...Sometimes they end up writing bad questions:

Take a look at this question:

Which entirely relies on anatomical measures:

Synapomorhies (it's not a typo)
Parsimony
Phenetics [x]

Guess what?

Phenetics doesn't rely entirely on anatomical features.

"Phenetics is an attempt to classify organisms based on overall similarity, usually in morphology or other observable traits, regardless of their phylogeny or evolutionary relation."

Based on this definition, how can one say "phenetics" entirely relies on anatomical feautues????!!!!!!!!!!!!!

I think "comparative anatomy" is the right answer and this is not one of the answer choices.

Yeah, I don't like that question. I got it wrong, which forced me to study the exciting world of taxonomy...

 

[dat_student]

Yeah, I don't like that question. I got it wrong, which forced me to study the exciting world of taxonomy...

so, do you now know what "synapomorhies" & "parsimony" mean in the world of taxonomy?! 😉

 

[puncho]

Heh, I got that question right only because I've seen that reaction so many times as an example in textbooks. 🙂