need help asap with this q (1 Viewer)

[lmao1010]

any help appreciated, havent rlly seen these kind of qs so kinda confused

 

[lmao1010]

@Run hard@thehsc

 

[Yeaidk]

Something like this?? Honestly not sure if its right do you have the answer ?

 

[lmao1010]

Something like this?? Honestly not sure if its right do you have the answer ?

Nah the paper didn't have answers I'll have a look at Ur answer thx btw

 

[jimmysmith560]

Just wanted to confirm that Yeaidk's answer is correct.

 

[lmao1010]

Something like this?? Honestly not sure if its right do you have the answer ?

ig this makes sense logically atleast to me but kinda seems easy for 3 marks now that i see it

 

[lmao1010]

Just wanted to confirm that Yeaidk's answer is correct.

oh ok thanks, jimmy do you have the answers to abbostleigh 2k21?

 

[Yeaidk]

ig this makes sense logically atleast to me but kinda seems easy for 3 marks now that i see it

do you have part b to the question?

 

[Run hard@thehsc]

Just wanted to confirm that Yeaidk's answer is correct.

Hey @jimmysmith560 isn't it asking for the ethanol content in the vodka and since we know that 40% of the volume is ethanol, shouldn't the moles be divided by the 40% of the aliquot value to give 18.2M? I believe @Yeaidk found the concentration of vodka and not the ethanol as demanded by the question - correct me if I am wrong...

 

[Akshara Patil]

I think I agree with @Run hard@thehsc

 

[jimmysmith560]

Hey @jimmysmith560 isn't it asking for the ethanol content in the vodka and since we know that 40% of the volume is ethanol, shouldn't the moles be divided by the 40% of the aliquot value to give 18.2M? I believe @Yeaidk found the concentration of vodka and not the ethanol as demanded by the question - correct me if I am wrong...

A very interesting observation. I am not an expert in Chemistry by any means but I did notice that Yeaidk wrote "vodka" at the end instead of "ethanol". However, I also recall reading the following from a source that provided a solution to a very similar question involving Grey Goose Vodka:

"We know that there is 7.288 mol of ethanol in 1 L (1000 mL) of vodka."​

This is obviously the same as saying 7.288 mol/L.

Perhaps someone else could provide a more in-depth explanation that extends to specifying the correct answer.

 

[Akshara Patil]

oh ok - this was part (b) of the same question. I am honestly quite confused as to what to discuss for this part?

 

[SCREW L+S]

I think I agree with @Run hard@thehsc

yep i agree with @Run hard@thehsc as well

 

[Yeaidk]

Oh yea i did it wrong sorry I didn’t read the question properly