Rearrange the following equation to solve for n. PV = nRT * A. n = PV / RT
B. n = PVRT
C. n = RT / PV
D. n = PVT / R

Given that the molar mass of nano3  is 85.00  g/mol, what mass of nano3  is needed to make 4.50  l of a 1.50  m nano3solution? use  .6.75 g18.9 g255 g574 g

Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?

Which object forms when a supergiant runs out of fuel? a red giant a black hole a white dwarf a neutron star