# data[].attributes.body
[H+] = 4.17 × 10^-3

[initial formic acid] = 0.096

Ka = 1.8 × 10^-4

# data[].attributes.body
[H+] = 4.2x10^-3M

[H+] = [HCOO-]

Ka= (4.2x10^-3)^2 / (0.1-4.2x10^-3)

Ka = 1.8x10^-4

# data[].attributes.body
[H+]= antilog(-2.38)

[H+]= 4.2x10^-3M

Ka= (4.2x10^-3)^2 / 0.100-4.2x10^-3)

Ka= 1.8x10^-4M

# data[].attributes.body
[H+]+4.2x10^-3M

[H+]=[HCOOH-]

Ka=(4.2x10^-3)^2/0.1-4.2x10^-3

ka=1.8x10^-4

# data[].attributes.body
Ka= 1.81x10^-4

# data[].attributes.body
1.8x10^-4

# data[].attributes.body
ka=1.8x10^-4

# data[].attributes.body
[H]= 4.17X10^-3

[HCOOH]=0.095

Ka= 1.8x10^-4

# data[].attributes.body
1.8x10^-4

# data[].attributes.body
[H+]= antilog(-2.38)

[H+]= 4.2x10^-3M

ka= (4.2x10^-3)^2 / 0.100-4.2x10^-3)

Ka= 1.8x10^-4M

# data[].attributes.body
[H+] = 4.17 × 10^-3

[initial formic acid] = 0.096

Ka = 1.18 × 10^-4

# data[].attributes.body
[H]=4.16x10^-3

4.16x10^-3x4.16x10^-3/0.100-4.16x10^-3

=1.8x10-4

# data[].attributes.body
1.8x10^-4

# data[].attributes.body
Ka=1.8 x 10^-4

# data[].attributes.body
(4.17x10^-5)^2/0.1-4.17x10^5

=1.813x10^-4

# data[].attributes.body
Ka =1.8x10^-4

# data[].attributes.body
[H+]=10^-2.38 = 4.16x10^-3

Ka= (4.16x10^-3)(4.16x10^-3)/(0.100-4.16x10^-3)

=1.8x10^-4

# data[].attributes.body
Ka=1.8x10^-4

# data[].attributes.body
Ka= (4.2*10^-3)^2 /0.100-4.3*10^-3

Ka= 1.8*10^-4M