From 00c4e5a10260cb85d87c3bf5320cc046e3afbb77 Mon Sep 17 00:00:00 2001 From: Daniel Chen Date: Thu, 17 Oct 2019 23:04:07 +0000 Subject: [PATCH] Add information about pH to Unit 1: Chemistry Part 2.md --- Grade 10/Science/SNC2DZ/Unit 1: Chemistry Part 2.md | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/Grade 10/Science/SNC2DZ/Unit 1: Chemistry Part 2.md b/Grade 10/Science/SNC2DZ/Unit 1: Chemistry Part 2.md index 0f83fc1..d19c7b3 100644 --- a/Grade 10/Science/SNC2DZ/Unit 1: Chemistry Part 2.md +++ b/Grade 10/Science/SNC2DZ/Unit 1: Chemistry Part 2.md @@ -29,6 +29,17 @@ - Reacts with fats and oils to form soap - Bitter-tasting +## pH + - Used as a scale to measure how acidic or basic a substance is + - Presented as a scale from 0-14 + - The lower the pH the more acidic, the higher the pH the more basic + - Measures `concentration` of hydrogen ions in solution + - pH scale is logarithmic + - Concentration is increased tenfold when pH is increased by 1 + - pH 1 = 0.1 mol/L + - pH 14 = 0.00000000000001 mol/L + - Water at 25 degrees Celsius is pH 7.0 (neither acidic nor basic) + ## Chemical Change - Similar to chemical reaction