1 / 2

Indicators and pH

Indicators and pH. Chemical substances called indicators are used to determine if a substance is an acid or a base. Indicators are substances which change colour according to the pH of a solution. The pH or haupū of a substance indicates how acidic it is. The pH scale ranges from

elsu
Download Presentation

Indicators and pH

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Indicators and pH Chemical substances called indicators are used to determine if a substance is an acid or a base. Indicators are substances whichchange colour according to thepHof a solution. ThepHorhaupūof a substance indicates how acidic it is. The pH scale ranges from 0 (highly acidic) to 14 (highly basic).

  2. pH scale ∙ ĀwhatapH The pH scale indicates the presence of H+ (hydrogen ions) and OH- (hydroxide ions) Weak/ dilute bases: Produce small amounts of OH- Strong/ concentrated acids: Produce large amounts of H+ Weak/ dilute acids: Produce small amounts of H+ Strong/ concentrated bases: Produce large amounts of OH-

More Related