Flashcards
Acids
Cards in this deck (26)
- 1What is the formula for hydrochloric acid?HCl
- 2What is the formula for sulphuric acid?H₂SO₄
- 3What is the formula for nitric acid?HNO₃
- 4What is the formula for ethanoic acid?CH₃COOH
- 5What is the formula for sodium hydroxide?NaOH
- 6What is the formula for potassium hydroxide?KOH
- 7What is the formula for ammonia?NH₃
- 8TRUE OR FALSE: H⁺ ions are never found by themselves in waterTRUE
They're always combined with H₂O to form hydroxonium ions (H₃O⁺) - 9What happens when acids are mixed with water?All acids release hydrogen ions (H⁺)
- 10What happens when bases are mixed with water?Alkalis (bases that are soluble in water) release OH⁻ ions in solution
- 11Give the general equation for the reaction of an acid with waterHA + H₂O ⇌ H₃O⁺ + A⁻
- 12Give the general equation for the reaction of a base with waterB + H₂O ⇌ BH⁺ + OH⁻
- 13What is the difference between a strong acid/base and a weak acid/base?STRONG
Nearly all of the acid/base will dissociate (or ionise) in water, and nearly all of the H⁺ ions or OH⁻ ions are released
WEAK
Only a small amount of the acid/base will dissociate in water and only a few H⁺ ions or OH⁻ ions are released - 14Give the word equation for the reaction between an acid and a baseAcid + Base --> Salt + Water
- 15Give the word equation for the reaction between acids with metalsMetal + Acid --> Salt + Hydrogen
- 16Give the word equation for the reaction between acids and metal oxidesMetal oxide + Acid --> Salt + Water
- 17Give the word equation for the reaction between acids and metal hydroxidesMetal hydroxide + Acid --> Salt + Water
- 18Give the word equation for the reaction between acids and carbonatesMetal carbonate + Acid --> Salt + CO₂ + H₂O
- 19Name two main indicators used in acid-base titrations (including the colour change)Methyl orange (yellow --> red = alkali --> acid)
Phenolphthalein (pink --> colourless = alkali --> acid) - 20What is a standard solution?A solution that has a precisely known concentration
- 21How are standard solutions made?By dissolving a known amount of solid in a known amount of water to create a known concentration
- 22What is the equation used for finding the concentration and volume of a standard solution?c₁V₁ = c₂V₂
- 23What are polyprotic acids?Polyprotic acids donate more than one proton
- 24What are diprotic acids?Diprotic acids donate 2 protons (e.g. H₂SO₄)
- 25What are triprotic acids?Tripotic acids donate 3 protons (e.g. H₃PO₄)
- 26Complete the sentence: Compared to a monoprotic acid, you'll need _________ the number of moles of _______ to neutralise a diprotic acid, and ______ for triproticCompared to a monoprotic acid, you'll need DOUBLE the number of moles of BASE to neutralise a diprotic acid, and TRIPLE for triprotic
Information
- Description
- User has deleted their subject information Flashcards on Acids, created by Deleted user on 05/03/2018.
- Created by
- Deleted user · Mar 2018
- Updated
- Mar 5, 2018
- Views
- 17
- History
-
- Created by Yinka F · Feb 19, 2018
- Copied by Yinka F · Mar 5, 2018
- Rating