Potassium thiocyanate, kscn, is often used to detect the presence of fe3+ ions in solution through the formation of the red fe(h2o)5scn2+ (or, more simply, fescn2+). what is [fe3+] when 0.700 l each of 0.00150 m fe(no3)3 and 0.200 m kscn are mixed? kf of fescn2+ = 8.9 × 102. enter your answer in scientific notation. report your final answer to two significant figures.

Chen drew a diagram to compare the ways in which different organisms obtain nitrogen. which label belongs to the area marked z?

What is the main reason why some developing countries fear the increase the free trade policies around the world?

These questions are based on the attached photo. the experiment is about burning magnesium metal with oxygen. 1. write the balanced chemical equation for the reaction you are performing. 2. calculate the mass of magnesium metal used in each trial. o trial 1: o trial 2: 3. calculate the actual yield of magnesium oxide for each trial. o trial 1: o trial 2: 4. magnesium is the limiting reactant in this experiment. calculate the theoretical yield of mgo for each trial. o trial 1: o trial 2: 5. determine the percent yield of mgo for your experiment for each trial. o trial 1: o trial 2: 6. determine the average percent yield of mgo for the two trials. your company currently uses a process with a similar cost of materials that has an average percent yield of 91 percent. if the average percent yield of this process is higher than that, this could save the company money. what is your recommendation to the company? support your recommendation using your data, calculations, and understanding of stoichiometry gathered from this lab.