After 5h electrolysis of ZnSO4 6l of O2 was released. Calculate the current (I)​

0.66y = 0.9x + 0.48 if y has a value of 108.45 what is the value of x?

How do i complete this electrolysis of water lab? i’m at home, so i don’t have the materials, and the lab didn’t properly work and was incomplete at school.

How much would the freezing point of water decrease if 4 mol of sugar were added to 1 kg of water(k=1.86 c/mol/kg for water and i=1 for sugar