In an experiment, you are to combine iron with an excess of sulfur and heat the mixture to obtain iron(III) sulfide.

2Fe(s) + 3S(s) Fe2S3(s)

What experimental information must you collect in order to calculate the percent yield of this reaction?

In 1901, thomas edison invented the nickel-iron battery. the following reaction takes place in the battery. fe(s) + 2 nio(oh)(s) + 2 h2o(l) fe(oh)2(s) + 2 ni(oh)2(aq) how many mole of fe(oh)2, is produced when 4.20 mol fe and 6.70 mol nio(oh) react?