The ph scale is a measurement system that indicates the concentration of in solution.

Hydrogen ions.

pH refers to  'Potential of hydrogen ions'. It is a measure of acidity or basicity of substances which are soluble in water.

pH scale indicates the concentration of hydrogen ions in solution. Higher the concentration of hydrogen ions, higher is the acidity of solution.

On the pH scale, value varies from 1 to 14. Number 7 indicates a neutral solution, whereas 1 and 14 being the most acidic and basic respectively.

relative humidity, temperature and dew point -- are bound together in the mathematical relationship below. relative humidity changes when temperatures change. because warm air can hold more water vapor than cool air, relative humidity falls when the temperature rises if no moisture is added to the air. so i would say a

multiplying and dividing the two decimals and the eqations by the same number of the overalls