Youtor
pH meter
YOUR LINK HERE:
http://youtube.com/watch?v=Xv4pm8iktlI
مقياس الحمضية • pH meter principle : reference electrode indicator electrode glass bulb and potentiometer • electronic pH meter is used to obtain more accurate pH measurements. A pH meter is an instrument used to measure hydrogen ion activity in solutions • A pH meter has a pH probe to conduct the electrical signals to the pH meter, which then displays the pH value of the solution. The pH probe contains two electrodes, namely a sensor electrode and a reference electrode. One is filled with a pH 7 buffer, and the other with saturated potassium chloride solution. The sensor electrode bulb comprises a porous glass membrane coated with metal salts and silica. • When the probe is submerged in a sample solution to measure the pH, hydrogen ions build up around the bulb and take the place of the metal ions. Similarly, some metal ions transfer from the glass (sensor) electrode to the sample solution. Because of low sensitivity to pH changes or complete insensitivity to pH changes, the reference electrode potential offers a constant voltage. This generates some electricity captured by the silver wire by generating potential difference (hydrogen-ion activity). The pH meter converts the voltage of this electric flow into pH value by comparing the generated voltage to the reference electrode. • Increasing the solution’s acidity results in a higher concentration of hydrogen ions, which raises the voltage. The pH measurement on the pH meter decreases due to the increased voltage. Similar to how an increase in alkalinity reduces hydrogen ions, an increase in the concentration of hydroxyl ions also reduces the voltage and raises the pH reading on a pH meter. • مكونات مقياس البي اتش ومبدأ عمله • حسابات CHMA • Facebook : / chma09 • Instagram : / chma0_9 • Telegram: https://t.me/chma0_9 • Youtube : / @chma0
#############################
