Consider two aqueous solutions of NaCl. Solution 1 is 2.80 M and solution 2 is 0.30 M. In what ratio (solution 1 to solution 2) must these solutions be mixed in order to produce a 0.98 M solution of NaCl? Enter your answer as the decimal equivalent of this ratio.

Hint This is a problem to work on your required algebra skills. Set up an expression for the molarity of the final solution and rearrange your variables in order to solve for the ratio of volumes requested (Volume1/Volume2).

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.