Mahquestions
Badges: 2
Rep:
?
#1
Report Thread starter 2 years ago
#1
hello
Basically i am really stuck on the extension questions for this PAG
1. Explain why the transmission of red light increases as the glucose concentration in the sample increases.
2. Why do we centrifuge the sample before taking a colorimeter
3. If the reading for your known glucose solution did not fall whithon your urrve what could you do to obtain an accurate value
SOMEONE PLZZZ HELP ITS IN FOR TOMORROW
0
reply
Mahquestions
Badges: 2
Rep:
?
#2
Report Thread starter 2 years ago
#2
(Original post by Mahquestions)
hello
Basically i am really stuck on the extension questions for this PAG
1. Explain why the transmission of red light increases as the glucose concentration in the sample increases.
2. Why do we centrifuge the sample before taking a colorimeter
3. If the reading for your known glucose solution did not fall whithon your urrve what could you do to obtain an accurate value
SOMEONE PLZZZ HELP ITS IN FOR TOMORROW
SpSOMEONE HELPPPPPPPPPPPPPPPPPP 😡😡😡😡😡😡😡😡 😡😡
0
reply
Hen123456
Badges: 3
Rep:
?
#3
Report 2 years ago
#3
Im not sure if its too late but this is what i put in case its still useful for others1) transmission increases as glucose conc increases because the colour of the solution gets lighter due to increased amount precipitate. More glucose (higher conc) means more precipitate. Lighter liquid lets more light pass through it so the transmission increases2) to filter solution so that solid particles gather and do not disrupt readings. the calorimeter needs to measure the liquid not the particles.3) Extrapolate the data. So like multiply your results by a certain amount then scale it back down again to get an accurate prediction.
9
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

University open days

  • University of Hertfordshire
    All Subjects Undergraduate
    Sat, 16 Nov '19
  • University of Roehampton
    General Open Day Undergraduate
    Sat, 16 Nov '19
  • Swansea University
    Undergraduate Open Day Undergraduate
    Sat, 16 Nov '19

Which party will you be voting for in the General Election?

Conservatives (59)
18.73%
Labour (126)
40%
Liberal Democrats (65)
20.63%
Green Party (23)
7.3%
Brexit Party (9)
2.86%
Independent Group for Change (Change UK) (0)
0%
SNP (4)
1.27%
Plaid Cymru (5)
1.59%
Democratic Unionist Party (DUP) (0)
0%
Sinn Fein (0)
0%
SDLP (0)
0%
Ulster Unionist (0)
0%
UKIP (3)
0.95%
Other (3)
0.95%
None (18)
5.71%

Watched Threads

View All