We will begin by observing in a quantitative way decomposition of baking soda (NaHCO3). When NaHCO3 is heated, it decomposes to Na2CO3, CO2 and H2O. In this experiment, we will decompose a known amount of NaHCO3 and measure the mass of the Na2CO3 produced (actual yield). We will then compare this to the theoretical value using the percent yield calculation.

Answer asap need 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.