16) Which of the following does NOT contain Avogadro's number of particles? A) 1.0 mole of carbon B) 23 g of sodium C) 6.02 x 1023 atoms of silicon D) 12 g of water 17) Which of the following contains Avogadro's number of atoms? A) 15.5 g of phosphorus B) 39 g of potassium C) 40 g of bromine D) 100 g of mercury 18) Which of the following contains as many atoms as 18 g of water, H₂O? A) one mole of hydrogen, H2 B) three moles of sodium, Na C) two moles of sodium chloride, NaCl D) two moles of oxygen, O2 19) How many moles of sulfur atoms are present in 3.00 moles of CS2? A) 1.00 B) 3.00 C) 6.00 D) 9.00.