Asked by 098123
The imaginary compound calcium nortonate, CaNtO4, is 54.698% nortonium, Nt, by weight. Calculate the percent, by weight, of potassium in potassium nortonate to four significant digits.
Answers
Answered by
DrBob222
If we write calcium nortonate as CaNtO4 then potassium nortonate would be K2NtO4.
Fraction Nt in CaNtO4 = [Nt/(Ca+Nt+4*O)] = 0.54698. Substituting atomic masses we have [x/(40.08+x+64)] = 0.54698. Note that since the answer is to be to 4 s.f. you should confirm these atomic masses and use the more accurate one. The idea is to determine the atomic mass of x = Nt.
Now you can determine the molar mass of K2NtO4. %K = (2*atomic mass K/molar mass K2NtO4)]*100 = ?
Fraction Nt in CaNtO4 = [Nt/(Ca+Nt+4*O)] = 0.54698. Substituting atomic masses we have [x/(40.08+x+64)] = 0.54698. Note that since the answer is to be to 4 s.f. you should confirm these atomic masses and use the more accurate one. The idea is to determine the atomic mass of x = Nt.
Now you can determine the molar mass of K2NtO4. %K = (2*atomic mass K/molar mass K2NtO4)]*100 = ?
Answered by
098123
thank you so much!!
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