Chemistry, 29.10.2019 21:31 Adolfosbaby
A0.5222 g solid sample containing a mixture of lacl3 (molar mass = 245.26 g/mol) and ce(no3)3 (molar mass = 326.13 g/mol) was dissolved in water. the solution was titrated with kio3 , producing the precipitates la(io3)3 and ce(io3)3 . for the complete titration of both la3+ and ce3+ , 42.81 ml of 0.1250 m kio3 was required. calculate the mass fraction of la and ce in the sample.
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Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?
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Iron (fe) reacts with copper sulfate (cuso4) to form iron (ii) sulfate. in this reaction, cu2+ gains electrons to form cu. which statement is true about this reaction? fe(s) + cuso4(aq) → feso4(aq) + cu(s)
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A0.5222 g solid sample containing a mixture of lacl3 (molar mass = 245.26 g/mol) and ce(no3)3 (molar...
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