Final answer:
To use logarithms, enter the number and press the LOG button to obtain the log value. You can perform operations like taking the inverse log or calculating 10^x.
Step-by-step explanation:
To obtain the log value with logarithms, enter the number (e.g., hydronium ion concentration) first and press the LOG button on your calculator. For example, if the number is 1.0 x 10^-5, you should get an answer of -5. If you get a different answer or an error, try pressing the LOG key before entering the number.
When using logarithms, you can perform various operations. For instance, to calculate a number from its logarithm, take the inverse log of the logarithm or calculate 10^(where x is the logarithm of the number).
To get the common logarithm of a number on your calculator, first enter the number and then press the LOG key. Conversely, to calculate a number from its logarithm, take the inverse log of the logarithm, or calculate 10ˉ.
For natural logarithms, use the ln button on your calculator. To calculate a number from its natural logarithm, enter the natural logarithm and take the inverse ln of the natural logarithm, or calculate eˉ.