<<<<<Quantitative analysis/ Qualitative analysis>>>>> (1 Viewer)

[tomato_sauce217]

Hey...
i saw that question in the exam.. which worth like 4 marks right???
can any one tell me what they wrote.. cuz i had NO idea what i worte in that question i guess i just bullshitted....

THANKS

 

[sub]

qualitative - turbidity secchi disk, smell of eater etc... no numerical data of any sort...just plain comparisons

quantitative - DO, BOD, dissolved solids (total), etc...other stuff with numbers to compare by.

not too hard really, but the paper sucked big time

 

[scruffy012]

yeah i know i did the same, i dunno what i wrote but its made up out of the top of my head

the good old bullshitting routine

hehe

scruffy

 

[L45er]

Qualitative means determing if something is present ie brown-ring test for nitrates (tells you they are presnt but not how much)
Quantitative means how much of something is present ie gravimetric analysis, titrations...
(Quantitative = quantity = how much - thats how i remember it)

 

[tomato_sauce217]

qualitative - turbidity secchi disk, smell of eater etc... no numerical data of any sort...just plain comparisons

quantitative - DO, BOD, dissolved solids (total), etc...other stuff with numbers to compare by.

not too hard really, but the paper sucked big time

yeah agree totally that the paper DID suck bad...
i didn't like da questions.. but any ways.... thx for answering..
that what i wrote.. but i didn't give that much examples... i had turbidity for Quali and phosphate and nitrate ions for Quati which is measured in ppm.. i just said that.. and explain it a bit..
hopefully willl get 4 marks...

 

[xeriphic]

what was the question again, did it ask you to define or give examples

 

[euphoric]

hmmz i got this one wrong then ><

 

[sub]

the second section is up somewhere in the chem section, posted by mary_tyler or sum such.
i cant find it but it IS up here

 

[slick01]

wasnt it only worth 2 marks???????

 

[tomato_sauce217]

HEy.. did the question only worth 2 marks?? or did it worth 4??
i my memories it was 4.. did i remember it wrong???
any one tell me??

 

[Brad]

You didnt need to put any of those water tests in it did you?


Didnt you have to just distingush between them

 

[xeriphic]

it said distinguish between the two..

okai then that's all right

 

[shoelace]

You didnt need to put any of those water tests in it did you?


Didnt you have to just distingush between them

yehhh.. thats what i thought. it didn't say anything about water tests

 

[Bridget]

It said something like "Qualititative and quantitative tests can be used for testing water sample. Distinguish between qualitative and quantitive" or something... so I just defined each and gave a water-related example of a test for each

 

[rumour]

qualitative - turbidity secchi disk, smell of eater etc... no numerical data of any sort...just plain comparisons

quantitative - DO, BOD, dissolved solids (total), etc...other stuff with numbers to compare by.

not too hard really, but the paper sucked big time

Did we have to list all that?

 

[steph@nie]

No. It was just a what is the difference, but i guess examples could've made the answer better.

 

[DavidB]

hey boys and girls..

This qn was only worth 2 marks. It asked to define both qualitative and quantitative. It wuldnt have been " a must " to include examples.

 

[Brad]

I am quite sure it didnt mention water samples in the question either.

 

[wesleyyuk]

i wrote qualitative analysis is sth related to the quality of water, such as turbidty, dissolved solids, etc. Quantitative analysis is sth related to the quantity of certain chemical in the water such as the level of suspneded particles in water, dissolved oxygen concentration, BOD, etc...was that right?

 

[mushroom_head]

omg...i didn't give examples! argh