If the actual yield is 63.7 g of chlorobenzene, calculate the percent yield. C6H6(l) + CI2(g) C6H5CI(S)+HCI(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?

Write the empirical chemical formula of calcium with a mass percent of 38.8, phosphorus with a mass percent of 20.0, and oxygen with a mass percent of 41.3.

The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles