Can anyone can answer practice problem exercise 6.5
2 answers:
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Answer:
2 moles of ammonium ions required to combine with 1 mole of oxalate ion to form ammonium oxalate.
Explanation:
Ammonium cation=
Oxalate anions =
By criss-cross method, the oxidation state of the ions gets exchanged and they form the subscripts of the other ions. This results in the formation of a neutral compound as shown in the image attached.
The ionic compound that formed when ammonium ion and oxalate ions combine is ammonium oxalate.
2 moles of ammonium ions required to combine with 1 mole of oxalate ion to form ammonium oxalate.
Mass percentage is given as:
%
Let the total mass of protein = 100 g.
Mass percentage of in protein = 0.672%
That means 0.672 g of is present in 100 g of protein.
Atomic mass of = 24.305 u
Number of moles =
Number of moles of =
Since, 1 molecule of protein contains 3 atoms of so, moles of protein is:
Moles of protein =
Rearranging the formula of number of moles as:
Substituting the values:
Molar mass of protein =
Molar mass of protein =
Hence, the molar mass of metalloprotein is .