-
oenuszb38A이(가) 업데이트를 게시했습니다 3 년, 1 개월 전
pH is a measurable parameter between the values of 0 and 14, provided the concentration of the solution does not exceed 1M. Solutions with a pH7 are alkaline. A PH METER is a device that measures the changes in the activity of hydrogen ions in a solution.
https://www.yinmik.com/ph-meter/
