Chemistry · Challenge

1/4
The pH scaleRunning
pH stabilizer. Acid dose at 8.28 µmol/L. Measured pH 5.08 pH, Target pH 5.4 pH. Currently measured ph is short by 0.318 pH.TUNING01234567891011121314ACIDICBASIC5.08 pH
t = 0.0s

Measured pH

5.08pH

Target pH

5.4pH

8.28 µmol/L

pH stabilizer. Acid dose at 8.28 µmol/L. Measured pH 5.08 pH, Target pH 5.4 pH. Currently measured ph is short by 0.318 pH.

What has to balancepH=−log⁡10[H+]\text{pH} = -\log_{10}[\text{H}^+]

What is happening

You take control of a brewery holding mash acidity inside a narrow window.

The meter is reading well off. The mash must sit at pH 5.4, and the acid dose in micromoles per litre has not been worked out.