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You have a stock container of 5X buffer, but your experiment requires 1X buffer. If you want to make 1.5 L, how much of the 5X buffer do you need? Please give your answer in mL.

A 10.0-µF capacitor is charged so that the potential difference between its plates is 10.0 V. A 5.0-µF capacitor is similarly charged so that the potential difference between its plates is 5.0 V.The two charged capacitors are then connected to each other in parallel with positive plate connected to positive plate and negative plate connected to negative plate. Reference: Ref 20-8 How much charge flows from one capacitor to the other when the capacitors are connected?

Before the 1880s, most immigrants came from _________; after the 1880s, most immigrants came from _______.

The sketch below shows cross sections of equipotential surfaces between two charged conductors that are shown in solid grey. Various points on the equipotential surfaces near the conductors are labeled A, B, C, …, I. Reference: Ref 19-6 At which of the labeled points will an electron have the greatest potential energy?

In the English Peppered moth example, which is incorrect:

How many grams of caffeine would you need in order to prepare 75 mL of a 15 µM solution of caffeine? The Mw of caffeine is 456 g/mol.

A rocket moves at a speed of about 7.25 x 103 m/s. It takes 115 milliseconds for a person to blink their eyes. If a football field is 91.4 meters in length, how many football fields does the rocket move in the blink of an eye?   Give your answer down to the second decimal place. 

Extra space only if needed.

In ocean acidification:

Please select from the following dilutions in order to make a 1:900 dilution in the least amount of steps. Please select all that apply.