# pH (Worksheet)

Name: ______________________________

Section: _____________________________

Student ID#:__________________________

Work in groups on these problems. You should try to answer the questions without referring to your textbook. If you get stuck, try asking another group for help.

## Q1

Calculate the pH for each $$[H^+]$$ given below:

• $$[H^+] = 0.00025$$
• $$[H^+] = 1.0 \times 10^{-7}$$
• $$[H^+] = 2.3 \times 10^{-3}$$
• $$[H^+] = 7.6 \times 10^{-12}$$

## Q2

Determine the $$[H^+]$$ from the pH:

• pH = 7.4
• pH = 2.8
• pH = 12.7
• pH = 4.5