Characterizing hydroponic stock nutrient solutions

In this video, I teach you how to perform two important characterization steps for hydroponic stock nutrient solutions (concentrated nutrient solutions). Accurately and precisely measuring the density and determining the expected conductivity of a dilution using a mass addition. This improves on my previous video about calculating the conductivity of a dilution prepared by volume since mass additions are more accurate. The density can also be used as a smoke test for future preparations of the same concentrated solution. For this example, I use the B solution prepared in this video https://www.youtube.com/watch?v=KNiAUym3Aw8&ab_channel=Chemisting. (Please notice that the Amazon links below are affiliate referral links. This means that if you click on them I may receive a commission from purchases. There is no additional cost to you, but it helps me to keep posting content for free.) Class A Volumetric Flask (250mL) https://amzn.to/3jME8WI 10mL Pycnometer https://amzn.to/3p8Yn3H Apera EC60 conductivity meter https://amzn.to/2IieU4m Beaker set https://amzn.to/3lwdGkw Scale (+/-0.01, 500g max) https://amzn.to/2GVBrTW