Why litmus paper doesn't change color in mixed solution

litmstxt

Source

General Social Survey https://gss.norc.org

Details

Question A solution of hydrochloric acid (HCl) in water will turn blue litmus paper red. A solution of the base sodium hydroxide (NaOH) in water will turn red litmus paper blue. If the acid and base solutions are mixed in the right proportion, the resulting solution will cause neither red nor blue litmus paper to change color. Explain why the litmus paper does not change color in the mixed solution.

Values

1 complete
2 partial
3 unsatisfactory/incorrect
NA(d) don't know / NA(i) iap / NA(j) I don't have a job / NA(m) dk, na, iap / NA(n) no answer / NA(p) not imputable / NA(r) refused / NA(s) skipped on web / NA(u) uncodeable / NA(x) not available in this release / NA(y) not available in this year / NA(z) see codebook

Question Years and Ballots

year	ballots	availability
2008	A/B/C	full

Link at the GSS

For further details see the GSS Data Explorer page for litmstxt.