how many moles of chlorine are in a 5.24 liter container at stp? r = 0.0821 l . atm/mol . k.; how many atoms are present in 179.0 g of iridium?; how many moles of cabr2 are there in 5.0 grams of cabr2?; which solution contains exactly 0.50 mole of h2so4?; what is the percentage, by mass, of sodium (na) in sodium bicarbonate (nahco3)?; when zinc is exposed to air, zinc oxide is produced. what happens in this reaction?; calculate the molar mass of cacoh; which of the following compounds are correctly named?