Indicators

Question 1

Ph range and color of phenolphthalein:

Answer 1

colorless 8.3 10 pink

Question 2

Ph range and color of methyl orange:

Answer 2

Pink 3.1 4.4 yellow

Question 3

Ph range and color of methyl red

Answer 3

red 4.2 6.3 yellow

Question 4

Ph range and color of litmus

Answer 4

red 5.5 7.5 blue

Question 5

write the equations and pH jump when Na2CO3 is titrated with HCl.

Answer 5

Na2CO3 + HCl —->NaHCO3 + NaCl
10.5-8.5
NaHCO3 + HCl ——>H2CO3 + NaCl
6.5-3