Possible Questions Flashcards
What is the formula for hydrochloric acid?
HCl
What is the formula for hydrochloric acid?
HCl
What is the formula for Nitric acid?
HNO3
What is the formula for methanoic acid
HCOOH
What is the formula for ethanoic acid
CH3COOH
What is the formula for sodium hydroxide?
NaOH
What is the formula for potassium hydroxide?
KOH
What is the formula for ammonia?
NH3
What is the formula for sulfuric acid?
H2SO4
What is the pH range of methyl orange?
3-5
What is the pH range of litmus
5-8
What is the pH range of phenolphthalein
8-10
What is the colour of methyl orange at it’s lowest pH
Red
What colour is methyl orange at it’s higher pH
Yellow
What colour is litmus at it’s low pH
Red
What colour is litmus at it’s high pH
Blue
What colour is phenolphthalein at it’s low pH
Colourless
What indicator would be used when titrating a strong acid against a strong base
All three would be used
What is range of pH values for the curve when titrating a strong base against a strong acid?
3-10
What indicator could be used when titrating a strong acid against a weak base?
Methyl orange
Between what pH values does the curve of a titration between a strong acid and a weak base stand?
Between 3-7
What indicator would be used to the titration of a weak acid against a strong base?
Phenolphthalein
Between what pH values does the curve of a titration between a weak acid and a strong base stand
7-10
