Acidic environment: Dot point 1

super-fatboy
Mind Map by , created over 6 years ago

Chemistry (The Acidic Environment) Mind Map on Acidic environment: Dot point 1, created by super-fatboy on 05/16/2013.

48
2
0
Tags
super-fatboy
Created by super-fatboy over 6 years ago
Chemical Reactions and Solutions
Adelene Somerville
transition metals
Ella Wolf
Acids and Bases quiz
Derek Cumberbatch
IB Economics SL: Microeconomics
Han Zhang
GCSE Chemistry C1.1 - Fundamental Ideas in Chemistry
chancice.branscombe
Organic Chemistry
Ella Wolf
Rates of Reaction
Evie Papanicola
OCR Chemistry - Atoms, Bonds and Groups (Definitions)
GwynsM
Organic Chemistry
Megan Tarbuck
Metallic bonding
anna.a.graysmith
Acidic environment: Dot point 1
1 1.1: Classify common substances as acidic, basic or neutral
1.1 Acid
1.1.1 Properties
1.1.1.1 In solution, it produces hydrogen ions, H+, or more strictly H3O+, called hydronium ions
1.1.1.2 Have a sour taste
1.1.1.3 They sting or burn the skin
1.1.1.4 In solution, they conduct electricity
1.1.2 Common Substances

Attachments:

1.2 Basic
1.2.1 Properties
1.2.1.1 Contains the oxide (O2-) or hydroxide ion (OH-) or which in solution produces the hydroxide ion
1.2.1.2 Have a soapy feel
1.2.1.3 Have a bitter taste
1.2.1.4 In solution, alkalis are good conductors
1.2.2 Common Substances

Attachments:

2 1.2: Identify that indicators such as litmus, phenolphthalein, methyl orange and bromothymol blue can be used to determine the acidic or basic nature of a material over a range , and that the range is identified by change in indicator change
2.1 Experiment
2.1.1 Aim: To prepare acidic and alkaline solutions of different concentrations and use these to investigate the colour change in a range of indicators.
2.1.2 Equipment

Attachments:

2.1.3 Safety inspection: Wear safety goggles. Sodium hydroxide is caustic (able to burn or corrode organic tissue) and hydrochloric acid is corrosive. Avoid contact with skin. If contact occurs, wash with plenty of water and soap.
2.1.4 Results

Attachments:

2.1.5 Procedure

Attachments:

3 1.3: Identify and describe some everyday uses of indicators including the testing of soil acidity/basicity
3.1 Soil Testing

Annotations:

  • Some plants grow best in acidic soils; others need slightly alkaline (basic) conditions. Farmers and keen gardeners use simple test kits containing an indicator and colour chart, to test the soil. They can then adjust the soil pH to get the best results
3.2 Water Testing

Annotations:

  • Swimming pools need regular testing for acidity to better maintain their water quality and hygiene. Aquariums must be maintained at very specific pH levels for the health of their inhabitants.
3.3 Effluent (Liquid waste or sewage) Testing

Annotations:

  • We can use indicators to assess the acidity levels of certain types of pollution from industries. Industry technicians and government authorities use indicators to monitor the pH of waste water and natural waterways.
4 1.4: Perform a first hand investigation to prepare and test a natural indicator
4.1 Aim: To prepare an indicator solution from red cabbage and test the resulting indicator on a range of substances
4.2 Safety Inspection: Wear safety glasses. Sodium hydroxide is caustic and hydrochloric acid is corrosive. Avoid contact with skin. If contact occurs wash with plenty of water.
4.3 Equipment

Attachments:

4.4 Procedure

Attachments:

4.5 Results

Attachments:

Media attachments