If you take 250 ml of 1.0 m naoh solution and dilute it with water to a final volume of 750 ml, what is the final concentration of of naoh?

When a septic tank backs up a goes in to clean it out

How can a give a full method for the experiment of separating sand from water by filtration? 1-materials 2-steps 3-conclusion also for water and salt separated by the evaporation or distillation process

Which item is most likely part of the safety contract