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Menomaths

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Re: Your Inudstrial Chem answers

32a)
Step 1: Soap added
Step 2: Soap forms bonds with grease/water
Step 3: Agitated and lifted off surce + washed away with water

Obviously analyzed that in more detail, so 3/3?
 

Menomaths

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Re: Your Inudstrial Chem answers

Equilibrium constant calculation;

0.25*0.25/0.1^2
=6.25
 

ocatal

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Re: Your Inudstrial Chem answers

For the location of the Solvay plant, what did everyone put, A or B?
 

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Re: Your Inudstrial Chem answers

A ofc
 

KoshX87

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Re: Your Inudstrial Chem answers

LOL i was actually considering B, because A was "near" the town and the water being dumped would screw up the town. But then i looked at the scale. And i told my self nup.
 

ocatal

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Re: Your Inudstrial Chem answers

Haha. What do you think about my 32a?
Yeah I think that should be full marks considering you analysed in more detail.

Did you mention the structure of soap (head and tail) which allows for micelle formation?
 

ocatal

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Re: Your Inudstrial Chem answers

LOL i was actually considering B, because A was "near" the town and the water being dumped would screw up the town. But then i looked at the scale. And i told my self nup.
Yes same! Was so confused about whether ammonia leakages would be a problem since A was closer to the town.
 

Menomaths

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Re: Your Inudstrial Chem answers

Yeah I think that should be full marks considering you analysed in more detail.

Did you mention the structure of soap (head and tail) which allows for micelle formation?
I mentioned how the non polar tail binds with grease due to dispersion forces? and it's hydrophobic while the head is hydrophilic and polar forming ion-dipole interactions with water. I'm so tired atm cbf typing all that complicated stuff :(
 

Menomaths

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Re: Your Inudstrial Chem answers

Yes same! Was so confused about whether ammonia leakages would be a problem since A was closer to the town.
Also, I said the plant is located at A because it can market it's stuff to the town
Obviously said CaCl2 can be disposed easily, water can be used as a coolant etc
 

ocatal

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Re: Your Inudstrial Chem answers

I mentioned how the non polar tail binds with grease due to dispersion forces? and it's hydrophobic while the head is hydrophilic and polar forming ion-dipole interactions with water. I'm so tired atm cbf typing all that complicated stuff :(
Yep you got it there. :D
 

KoshX87

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Re: Your Inudstrial Chem answers

Also, I said the plant is located at A because it can market it's stuff to the town
Obviously said CaCl2 can be disposed easily, water can be used as a coolant etc
In the end i put like a summary that:
A is closer to the ocean, so wastes can be easily disposed of.
It is closer to the town and the Na2CO3 market
And finally, I wrote that possibly there are other industries nearby (such as petroleum or natural gas and/or ammonia plants), because they'd also want to be near the city for their markets and hence the different industries could integrate.
 

ocatal

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Re: Your Inudstrial Chem answers

In the end i put like a summary that:
A is closer to the ocean, so wastes can be easily disposed of.
It is closer to the town and the Na2CO3 market
And finally, I wrote that possibly there are other industries nearby (such as petroleum or natural gas and/or ammonia plants), because they'd also want to be near the city for their markets and hence the different industries could integrate.
I think we also had to mention the railway providing easy transport of limestone to the plant. Didn't mention it though -.-
 

Menomaths

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Re: Your Inudstrial Chem answers

I think we also had to mention the railway providing easy transport of limestone to the plant. Didn't mention it though -.-
1 mark gone if we didn't?
 

KoshX87

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Re: Your Inudstrial Chem answers

I think we also had to mention the railway providing easy transport of limestone to the plant. Didn't mention it though -.-
I guess you could. For me it felt like a disadvantage because it was so far away. It was like a winding track of like 300km of rail. If you do mention that, as long as you provide a reason it should be treated as correct.
 

ocatal

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Re: Your Inudstrial Chem answers

But that's stupid though :(
Idk why but I just think it was important in showing why A was preferable over B and that the advantages of B (limestone) were not only limited to B (transport using train).

I could be wrong. I hope I am lol..
 

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