If you already know the desired PPM concentration and the entire mass within your solution, this calculator informs you accurately the amount of a selected compound (solute) you must increase. PPT means “elements per trillion” which is accustomed to measure concentrations that tend to be lesser than PPB or PPM. https://ppmcalculator24008.blogproducer.com/44045834/facts-about-online-ppm-calculator-revealed