百度试题 结果1 题目What is the pH scale used to measure?相关知识点: 试题来源: 解析 pH scale measures the acidity or basicity of an aqueous solution.反馈 收藏
The pH scale is used to measure the pH level to know whether a solution is acidic, neutral, or basic. The scale is from 0 to 14; anything less than 7... Learn more about this topic: The pH Scale | Definition, Equation & Examples ...
Figure 1. The pH scale measures the concentration of hydrogen ions (H+) in a solution.The stronger the acid, the more readily it donates H+. For example, hydrochloric acid (HCl) completely dissociates into hydrogen and chloride ions and is highly acidic, whereas the acids in tomato juice ...
The pH scale will be covered with this quiz/worksheet combo. Answer questions on key topics such as acidic liquids and what the pH scale measures. Quiz & Worksheet Goals See what you know about: Another word that's similar to 'basic' ...
Why do we use a pH scale? The pH scalemeasures whether there is more hydronium or hydroxide in a solution. In other words, it tells us how basic or acidic the solution is. A lower pH means something is more acidic, also known as a stronger acid. ...
The pH scale measures how acidic or alkaline a substance is. It runs from 0 to 14, with a pH of 7 being neutral, a pH lower than 7 being acidic and a pH higher than 7 being alkaline. The scale is logarithmic, meaning each whole pH value below 7 is ten times more acidic than th...
Because we know that the complete range of the pH scale reaches 14, we can use that value to conclude the following and create another equation to use known values of hydrogen ion concentration or known values of hydroxide ion concentration. {eq}(pH^+) + (pOH^-) = 14 {/eq} For examp...
The pH scale is frequently used to describe the acidity of a solution: {eq}pH = -log[H+] {/eq} In this equation, "pH" is simply defined as meaning the negative log of the concentration of hydrogen ions (protons) in moles/L (molarity). ...
【题目】The pH of a substance is a measure of its acidity. The pH scale rangesfrom 0 to 14, with a pH of 7 being neutra. As the pH decreases, the substance ismore acidi. The table shows the pH of several common substances.pHHydrogenlonSubstanceConcentrationcofee510^(-5) Acidsmilk610^...
pH scale was introduced by Danish biochemist Sorensen in 1909. pH means the potential of hydrogen. It measures the concentration of hydrogen ions in a solution. The pH scale ranges from 0 to 14 and according to the pH values, the unknown solutions are recognized. ...