Use the food dye interactive to perform each dilution and then determine the values of f , f , and i . Food dye Initial concentration (μM) Initial volume (mL) Final concentration (μM) Final volume (mL) Red 40 32 3.0 f 6.0 Yellow 5 40 1.0 5.0 f Blue 1 8.0 i 1.0 8.0

Apeak with a retention time of 407 s has a width at half-height (w1/2) of 7.6 s. a neighboring peak is eluted 17 s later with a w1/2 of 9.4 s. a compound that is known not to be retained was eluted in 2.5 s. the peaks are not baseline resolved. how many theoretical plates would be needed to achieve a resolution of 1.5?

The table describes how some substances were formed substance 19 description formed by boiling pure water formed by combining three hydrogen atoms to every nitrogen atom formed by adding 5 g of sugar to 1 l of water formed by compressing carbon under high pressure based on the given descriptions, which substance is most likely a mixture?

In the following redox reaction which is the oxidizing agent and which is the reducing agent? alcl3 + na nacl + al oxidizing agent = reducing agent =