points The concentration of CO2 in the area around an oil field was measured in Jan. 2030 to be around 275 ppm. The measured pH of the rainwater in the member the industrial revolution 1900 was found be around 5.52, estimate the concentration of CO2 in 1900. Piktm & T-25.CO, Henry constant - 0.033363 mole/literat? CH2 = 4.47 10-7x [co, laquas)] + 10-14- 510 ppm 610 ppm 600 ppm 500 ppm