How do you accurately describe a electron?

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

Achemical reaction is done in the setup shown, resulting in a change of mass. what will happen if the same reaction is done in a sealed container that is placed on the electronic balance?

Under which circumstances are kp and kc equal for the reaction aa(g)+bb(g)⇌cc(g)+dd(g)?