Describe how you would make 2 l of a 0.1 m glycine buffer, ph 9.0, using glycine (molecular weight in the zwitterionic form is 75.07 g/mol) and 1.0 m naoh. for glycine the pka is 9.6

If a planet rotates 360 degrees during a 24 hour time period, what does that tell us about the planet? a. the middle of the planet is in darkness b. the seasons on the planet vary every day. c. the planet runs on a 12-hour time clock. d. the temperature on the planet varies daily.

What are the advantages of using the metric system? designed as a decimal system making conversions simpler more accurate system of measurement has prefixes that correspond to an amount to use with all base units used by the entire scientific community

Ahelium balloon contains 16.9 l of helium at stp. how many atoms of helium are in the balloon