Chemistry Paper 6 Tips

ThePacifics

ThePacifics

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Dana Malek said:
Q4
Click to expand...
So they ask us

In a similar experiment, methyl orange indicator was used in Experiment 1 followed by
phenolphthalein in Experiment 2.
Suggest why this experiment would not work.

because if we use TWO indicators obviously both of them will show a colour change. Thus, one of the colours might mask the other's color. The indicator's colors will not be precise or accurate.
The methyl orange's color will mask the color of the phenolphtalein.

Hope this helps.
 
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ShahmirUsman

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What was the answer to "What will the effect be if a 100cm3 conical flask is used instead of 250cm3"
And what was the answer to "what formed in the student's evaporating dish when she did the crystallization process incorrecty"
Thanks.
 
D

Dana Malek

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ThePacifics said:
So they ask us

In a similar experiment, methyl orange indicator was used in Experiment 1 followed by
phenolphthalein in Experiment 2.
Suggest why this experiment would not work.

because if we use TWO indicators obviously both of them will show a colour change. Thus, one of the colours might mask the other's color. The indicator's colors will not be precise or accurate.
The methyl orange's color will mask the color of the phenolphtalein.

Hope this helps.
Click to expand...
thnx :D
 
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