. Fresh solutions A, B, C, D & E when tested with Universal indicator showed pH as 4 , 1 , 11 , 7 &9
respectively. Which should be a) Neutral b) strongly alkaline c) Strongly acidic d) Weakly acidic e)
Weakly alkaline?
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a) D
b) C
c) B
d) A
e) E.
Hope it helps.
b) C
c) B
d) A
e) E.
Hope it helps.
Answered by
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When using a universal indicator, a pH of 7 is considered neutral. Any value less than 7 is acidic and any value more than 7 is basic. How close the value is to 7 determines how strong or weak it is.
A = 4
B = 1
C = 11
D = 7
E = 9
D is definitely neutral.
A and B are acidic.
C and E are alkaline.
Since A's value is closer to 7, it is weakly acidic. B will be strongly acidic.
Since E's value is closer to 7, it is weakly alkaline. C is strongly alkaline.
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Here's your answer...
When using a universal indicator, a pH of 7 is considered neutral. Any value less than 7 is acidic and any value more than 7 is basic. How close the value is to 7 determines how strong or weak it is.
A = 4
B = 1
C = 11
D = 7
E = 9
D is definitely neutral.
A and B are acidic.
C and E are alkaline.
Since A's value is closer to 7, it is weakly acidic. B will be strongly acidic.
Since E's value is closer to 7, it is weakly alkaline. C is strongly alkaline.
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