Predict the colour of methyl orange when $$p{^H}$$ is 8?
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A. It is the measure of base concentration in the solution
B. It is the measure of hydrogen ions concentration in the solution
C. It is the measure of acid concentration in the solution
D. It is the measure of hydroxyl ions concentration in the solution
Answer: B
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A. The base was stronger than the acid
B. The acid base ions are at equilibrium
C. The beaker was occupied by acid solution instead of base.
D. The titration time was overdue
Answer: C
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A. Equivalence point of titration
B. Saturated point of titration
C. End point of titration
D. Neutralization point of titration
Answer: A
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A. 12.636 X 270 = C1 X 20
B. 11.7 X 20 = 0.936 X 250
C. 0.936 X 250 = 11.7 X 20
D. 11.7 X 250 = 0.936 X 20
Answer: B
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A. The procedure can cause explosion
B. The acid is hygroscopic and will cause explosion when added to water
C. The dissolution of acid in water is exothermic which may cause explosion
D. The acid is corrosive and can destroy the glass ware
Answer: C
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A. Quantity of apparatus
B. List of apparatus
C. List of chemicals
D. List of weight of each reagents
Answer: D
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