No you can not. In order to test soil ph you will have to spend some bucks on a quality meter. What growers do is just buy a digital ph pen and test run-off water.
Here's a great pen from a great company. This pen along with some 7.0 calibration solution and storage solution and you are good to go.
Hanna pHep+ pH Tester - Mfg# HI 98108