Scarlett wants to make a buffered solution to clean the marker that ada has generously donated to the wall in her bedroom. she needs to make an ideal buffer that has a basic ph. with her extensive chemistry experience, she knows she can use sodium carbonate (na2co3) and 1.0 m hcl to make the buffer she wants. sodium carbonate is a dibasic base. the pkb of ,)# *m is 3.68 and the pkb of ",)# m is 7.65. the pka of hcl is -10. **hint** dibasic bases can make more than one ideal buffer if scarlett needs 4 l of buffer with a total concentration of [co3] = 0.25 m and a basic ph, calculate the gram amount of na2co3, volume of 1.0 m hcl and any additional water needed to create the buffer.