Al2(SO4)3 would be the formula.
The answer is bohr hope this helps :)
Answer:
all the elements in the same period have the same valence electrons.
I am pretty sure u have pictures and this one should be the one that erika should make
The mass number of aluminium hydroxide is 78 thus, the number of moles in 0.745 g is:
no. of moles= mass/ RFM
= 0.745/78
=0.00955moles
Therefore the 0.00955 moles should be in the 35.18 ml
therefore 1000ml of the solution will have:
(0.00955ml×1000ml)/35.18
=0.2715moles
The solution will be 0.27M hydrochloric acid
