Chemistry, 09.06.2021 05:20, barisegebalci2352
A silver coin was analysed and found to contain only silver and copper. 1.580 g of this coin was
dissolved in concentrated nitric acid and the resultant solution diluted. Reaction of the solution
with excess hydrochloric acid yielded 1.050 g of silver chloride. Calculate the percentage of silver
in the samples
Answers: 2
Chemistry, 22.06.2019 04:00, queenkimm26
Tin has ten stable isotopes. the heaviest, 124sn, makes up 5.80% of naturally occuring tin atoms. how many atoms of 124sn are present in 82.0 g of naturally occurring tin? what is the total mass of the 124sn atoms in this sample?
Answers: 3
Chemistry, 22.06.2019 18:00, rodriguezscarlet1713
Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?
Answers: 2
A silver coin was analysed and found to contain only silver and copper. 1.580 g of this coin was
di...
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