Match the chromatography term with its definition. a. A hollow tube that is filled with particles coated with stationary phase material.
b. It describes the velocity of solvent as it travels through the column.
c. It is the elapsed time between sample injection and detection.
d. It is the fluid that enters the column.
e. The separation medium that is bonded to the surface of particles packed in a column.
f. It is a liquid or gas solvent that carries the sample through the separation column.
g. A hollow capillary tube with inner walls that are coated with stationary phase material. It is the fluid that exits the column.
i. eluent
ii. eluate
iii. packed column
iv. linear flow rate
v. open tubular column
vi. stationary phase
vii. mobile phase
viii. retention time

Calculate - analysis of compound composed of iron and oxygen yields 174.86 of fe and 75.14g of o. what is the empirical formula for this compound?

Which of the following electromagnetic waves can create ions?

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.