First convert mega grams to grams
(9.57x10^2)*(10^6)=957100000 grams
Then find the molar mass of nickel sulphate
Nickel Ni 3+ and sulphate SO4 2+
So formula= Ni2(SO4)3
So mr = (59*2) + (32*3) + (16*12)
= 406gmol-1
Moles = mass/mr
957100000/406
=2357389.163 moles
Answer:
Is a substance that can maintain certain range of pH
Explanation:
A buffer is mixture of two salts that are complementary, one salt is acid and another is basic, but since then share some part of their structure, if you add to this mixture another acid, the basic salt can absorb it and still maintaining the same pH. If you pour a base, the acid salt will absorb it and again the final pH will remain the same. So the buffers are used to maintain the same pH does not matter if you add small quantities of an acid or base.
I think that water , because the bacteria dont is a liquid, thats help the plant to made their food
