Silver nanoparticles are included in the material that sports socks are made from. Silver nanoparticles can kill bacteria.
Silver nanoparticles can have a diameter between 1.120x10-9 m
and 1.008x10-8 m.
A silver atom has a diameter of 2.8x10-10 m.
Give the maximum and minimum number of silver atoms in the
thickness of one nanoparticle.

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025

Identify the electromagnets with poles that are reversed from the electromagnet shown above

Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.