Biology; Chemistry; Physics: Post your doubts here!

[princess Anu]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Biology (5090)/5090_w13_qp_21.pdf
somebody please explain me 2(c)

 

[funky brat]

http://www.public.asu.edu/~camartin/plants/Plant html files/rosa.html



https://www.google.com.pk/search?q=sepals in a hip rose fruit&es_sm=93&source=lnms&tbm=isch&sa=X&ei=8X1rU7WzKefb7AbpyIDwDg&ved=0CAgQ_AUoAQ&biw=1280&bih=675#facrc=_&imgdii=_&imgrc=7CQShWE-EHyO4M%3A;3cG88aNg1QwWXM;http%3A%2F%2Fblog.lib.umn.edu%2Fmichaels%2Fwedevening%2FverticalroseLJF.jpg;http%3A%2F%2Fblog.lib.umn.edu%2Fmichaels%2Fwedevening%2F2009%2F11%2F;650;488


The Long parts below the hip rose fruit were the sepals! Im hearing it for the first time from you guys that they were not . Even my teacher confirmed they were and here are the links for you to examine yourself! How can that be a pedicel or whatever you guys are saying :/

God, we know they were sepals, we were talking about the point of attachment. Like do you remember the fruit was attached to something, that's pedicel.

 

[ciesgetoveralready]

God, we know they were sepals, we were talking about the point of attachment. Like do you remember the fruit was attached to something, that's pedicel.

Ohh okay I thought that girl was talking about the label because she said thankgod. It really got me paranlid. I thought maybe my answer is wrong!

 

[princess Anu]

Ohh okay I thought that girl was talking about the label because she said thankgod. It really got me paranlid. I thought maybe my answer is wrong!

i was actually talking about the label :S lets just leave it :/

 

[Faizan Muhammmad]

They were not.
It was pedicel.

look there was a fruit hanging
the couple of protrusions below were sepal and on top where it was hanging from would be pedicel
we are talking about sepals below, I think..

 

[funky brat]

look there was a fruit hanging
the couple of protrusions below were sepal and on top where it was hanging from would be pedicel
we are talking about sepals below, I think..

This is what I've been saying.
I hope they understand you well.

 

[Dark Destination]

They were not.
It was pedicel.

They were sepals. O.O

 

[funky brat]

They were sepals. O.O

Okay one more time.
The fruit were hanging so the stalk that made the fruit hang was pedicel on the top and the bottom extensions were the sepals.

 

[Dark Destination]

Okay one more time.
The fruit were hanging so the stalk that made the fruit hang was pedicel on the top and the bottom extensions were the sepals.

That's what i am saying

 

[princess Anu]

Somebody reply to my questions

 

[Dark Destination]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Chemistry (5070)/5070_w11_qp_42.pdf

Q10 f (i)
somebody answerrr..

Divide the previous answer by 10. As that was for 250, they want 25 now.

 

[FLRNAB]

http://papers.xtremepapers.com/CIE/Cambridge International O Level/Chemistry (5070)/5070_w11_qp_42.pdf

Q10 f (i)
somebody answerrr..

Divide the previous answer by 10. As that was for 250, they want 25 now.

Same as (E 250cm) because adding water does not add any more moles of ethanoic acid but only changes the concentration so moles would remain same. The answer is the same as "Part E"

 

[princess Anu]

Same as (E 250cm) because adding water does not add any more moles of ethanoic acid but only changes the concentration so moles would remain same. The answer is the same as "Part E"

But why isnt the answer same as part d?

 

[princess Anu]

Divide the previous answer by 10. As that was for 250, they want 25 now.

But why isnt the answer same as part d?

 

[Dark Destination]

But why isnt the answer same as part d?

It is. Sorry, i didn't read the question.

 

[FLRNAB]

But why isnt the answer same as part d?

D is for 25 cm of E,
E is for 250 cm of E,

Read the question again. They said the vinegar was taken and made to 250 cm solution by adding water. D tells us only the moles in 25 cm of the solution while E tells us moles in 250 cm of vinegar. Moles in Vinegar = Moles in 250 cm E but Moles in Vinegar != Moles in 25 of E

 

[princess Anu]

i dont understand it

 

[princess Anu]

It is. Sorry, i didn't read the question.

no the answer is same as e but can't understand why

 

[Dark Destination]

no the answer is same as e but can't understand why

Because the number of moles will be same. FLRNAB explained it

 

[princess Anu]

but why not d