The stannous fluoride in a 10.000 g sample of toothpaste was extracted and then precipitated
wi...
Chemistry, 20.11.2019 06:31 allisondelp6
The stannous fluoride in a 10.000 g sample of toothpaste was extracted and then precipitated
with lanthanum nitrate solution. if the mass of the precipitate is 0.105 g, what is the per-
centage of stannous fluoride in the toothpaste sample?
3 snf2 (aq) + 2 la(no3)3(aq) —>
laf3(s) + 3 sn(no3)2(aq)
Answers: 2
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