# Acidic, Basic, or Neutral Lab Investigation - Lab#4 Acidic...

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Lab #4 Acidic, Basic or Neutral Investigation May 23, 2017 Nathan Greenwood Partner: Sean Palmer Ms. Cinanni Teacher SNC-2D Introduction:
An acid is a molecular compound that creates hydrogen ions, when dissolved in water. As more hydrogen ions are introduced, the acid becomes stronger. Properties of an acid include: being a reactant of metals and carbonates, a conductor of electricity, able to turn blue litmus paper, red and keep red litmus paper red, having a sour taste, and has the ability to neutralize a base. Examples of acids include: Hydrochloric acid (HCl), Sulphuric acid (H 2 SO 4 ), Nitric acid (HNO 3 ), and Carbonic acid (H 2 CO 3 ). Most of time bases are an ionic compound, which produce hydroxide ions when dissolved in water. The more hydroxide ions produced by a base, the stronger the base is. Properties of a base include: conductor of electricity, able to turn red litmus paper blue and keep blue litmus paper blue, and tastes bitter. Examples of bases include: Sodium hydroxide (NaOH), Calcium hydroxide (Ca(OH) 2 ), Ammonium hydroxide (NH 4 OH), Magnesium hydroxide ( Mg(OH) 2 ). Purpose: To identify whether each substance is acidic, neutral or basic based on the colours that the red/blue litmus paper turn and the colour that the pH universal indicator strip turns into. Materials: Blue litmus paper strips Red litmus paper strips
pH universal indicator strip pH colour chart 19 beakers Milk Bottled water Drain cleaner Tap water Vinegar Apple juice