Convert 653 mm Hg to Sl units.
A. 87,058 Pa
B. 101,325 Pa
C. 90 kPa
D. 8700 Pa

Suppose you wanted to make 100 grams of water. what is the molar mass of water (h2o)?

Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.

Calculate the ph of a .10m nh4cl solution. the kb value for nh3 is 1.8×10^-5