Answer
a. The solution is basic.
b. The solution is acidic.
c. The solution is basic.
d. The solution is basic.
Work Step by Step
- If $pH \gt 7$, the solution is basic;
- If $pH \lt 7$, the solution is acidic;
- If $pH = 7$, the solution is basic.
a. Since $pH = 7.70 \gt 7$, the solution is basic.
b. Since $pH = 1.30 \lt 7$, the solution is acidic.
c. Since $pH = 10.54 \gt 7$, the solution is basic.
d. Since $pH = 11.73 \gt 7$, the solution is basic.