Arrange the procedural steps, from start to finish, that are required to prepare an azo dye from aminobezenesulfonic acid and phenol via a diazonium salt, and then test its ability as a dye. Drag and drop the answers into the box in the correct order. All answers must be used. 1. Add the contents of the test tube to ice cold hydrochloric acid.
2. Filter the precipitate and wash with sodium chloride solution.
3. Remove the strip, rinse with water, and record the color when dry.
4. Add sodium nitrite solution to the test tube using a micropipettor.
5. Place aminobenzene sulfonic acid and sodium carbonate solution in a test tube, and warm on a steam bath.
6. Dissolve the azo dye in water, then immerse a fabric strip into the solution and heat for 10 minutes.
7. Add phenol and sodium hydroxide while cooling in an ice bath.
a. Start of Lab
b. End of Lab

Which of these best describes an ionic bond?

Use the table to identify the phase and phase changes of the elements under the given conditions. write the name of the substance, phase, or phase change

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.