A power forward is a forward who possesses above average offensive skills and plays a tough... A power forward is a forward who possesses above average offensive skills and plays a tough, physical game. Most of the time, power forwards are physically large, but some players are referred to...
The soil pH is a measure of the acidity or alkalinity in soils. pH is defined as the negative logarithm (base 10) of the activity of hydronium ions (H+. or, more precisely, H. 3O+. aq) in a solution. In water, it normally ranges from -1 to 14, with 7 being neutral. A pH below 7 is acidic and above 7 is alkaline.
The pH scale was developed to measure how acidic or basic a substance is. This scale measures pH from 0-14. Acids have pH values between 0 and 7 and bases have pH values between 7 and 14. Pure water is neutral and has a pH of exactly 7. Indicators are used to measure the pH of a substance. Often times, plant extracts will change color if exposed to acidic or basic conditions and can therefore be used to indicate if a substance is an acid or a base. Todayâs experiment focuses on the use of litmus paper, a most basic pH paper dating back many years.