How to correct this error? A. Calibrate the pH meter B. Use a more accurate indicator C. Repeat the measurement D. All of the above 相关知识点: 试题来源: 解析 D。校准 pH 计可以提高测量的准确性,使用更精确的指示剂能得到更准确的结果,重复测量可以减少偶然误差,以上方法都有助于纠正该误差。
pH Meter: 0-14pH; ORP Meter: -1999mv~1999mv; After-sales Service: Yes; Warranty: 1year; Display: Digital; Portable: Non Portable; Appliance: Food Analysis, Medical Research, Biochemistry; Product Name: pH Meters; Test Parameter: pH,ORP,Temp.; pH Range: 2.00...
The standardization of a pH meter is important to ensure that the readings returned from that meter are accurate. Digital & analog pH meters offer calibration buttons or dials that are used to adjust the sensitivity of the meter. Over the course of standard usage, laboratory equipment, such as...
What is acidity? What does pH actually mean? How does a pH meter work? Who invented the pH meter? Find out moreWhat is acidity?Photo: Some acids, such as lemon juice, are perfectly safe to handle; others will burn your skin and can do painful, permanent damage. How can you tell whi...
Use the following four steps in the calibration of pH meters. Step 1: Clean the Electrodes If working with laboratory equipment and chemicals, it is important to wear proper safety equipment, such as gloves and safety glasses. After turning on the power to the pH meter, take the pH meter ...
using a ph test kit is an easy, cheap way to measure the pH of your hydroponic nutrient solution, it is not the most accurate. Readings can vary depending on how many drops you use, the lighting, and perception. For a more accurate reading, I prefer to use anelectronic pH meter. ...
How a pH meter worksEuropean Instruments LtdLabPro 2012. How a pH meter works. Recuperado el dia 11 de noviembre, 2012, de http://www.labpro.co.uk/phmeters/technical-web/how-a-phmeter-works.php
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How do you read a pH scale? Explain the scientific method and its purpose. Explain density. How is total magnification calculated on a microscope? How to use a spectrophotometer to measure the absorbance of a solution at different wavelengths?
pH meter is an instrument used to measure acidity or alkalinity of a solution - also know as pH. pH is the unit of measure that describes the degree of acidity or alkalinity. It is measured on a scale of 0 to 14. The quantitative information provided by the pH value expresses the deg...