Time (s)

Volume of HHO gas produced at 0.04 M electrolytes strength and voltage of 13 V

KOH (cm3)

NaOH (cm3)

NaHCO3 (cm3)

10

31.4

28.0

15.7

20

49.3

43.9

18.6

30

66.0

58.1

21.0

40

82.5

73.1

23.0

50

97.1

87.9

25.3