Find the mass in grams of 3.10 x 1023 molecules of fluorine gas at stp

An observation that requires measurement is called quantitative observable or qualitative

Consider this initial-rate data at a certain temperature for the reaction described by

Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. a solution containing 3.50 g of sodium carbonate is mixed with one containing 5.00 g of silver nitrate. how many grams of sodium carbonate, silver nitrate, silver carbonate, and sodium nitrate are present after the reaction is complete?