What precautions must be taken when handling 0.5 m hcl and 0.3m koh solutions in the laboratory?

The precautions we take to handle these solutions is to wear safety goggles, lab coat and also the hand gear (this is also important).

KOH (potassium hydroxide), which is a strong base and HCL (hydrochloric acid) which is a strong base and both these solutions dissociates completely in water. So, whenever you are working in laboratory with chemicals you must be careful.

b) mutualism

hope this : )

the density(ratio between mass and volume as m/v) decreases from top to bottom in periodic table group as the size increases and nuclear charge decreases. but in periods density increases from left to right as atom size decreases and nuclear charge increases.