Calcium carbonate (caco3) reacts with stomach acid (hcl, hydrochloric acid) according to the following equation: caco3(s) 2hcl(aq)⟶co2(g) h2o(l) cacl2(aq) a typical antacid contains caco3. if such an antacid is added to 25.0 ml of a solution that is 0.450 m in hcl, how many grams of co2 gas are produced?

Answer asap need to be answered by wednesday morning explain how a buffer works, using an ethanoic acid / sodium ethanoate system including how the system resists changes in ph upon addition of a small amount of base and upon addition of a small amount of acid respectively. include the following calculations in your i. calculate the ph of a solution made by mixing 25cm3 0.1m ch3cooh and 40cm3 0.1m ch3coo-na+. [ka = 1.74 x 10-5 m] ii. calculate the ph following the addition of a 10cm3 portion of 0.08 m naoh to 500cm3 of this buffer solution. iii. calculate the ph following the addition of a 10cm3 portion of 0.08 m hcl to 200cm3 of the original buffer solution.