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Chemistry: Unit 1 > Acids and Bases > Flashcards

Acids and Bases Flashcards

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1
Q

pH for Acids

A

less than 7

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2
Q

pH for bases

A

above 7

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3
Q

pH for neutral

A

exactly 7

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4
Q

Forming alkalis

A

Alkalis are soluble bases. An alkaline solution can be formed when a metal oxide is dissolved in water.

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5
Q

Forming Acids

A

An acidic solution can be formed when a non-metal oxide is dissolved in water

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6
Q

Hydrogen ions

A

H+

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7
Q

Hydroxide Ions

A

OH-

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8
Q

Common lab acids containing H+

A
  1. Hydrochloric acids; HCl
  2. Nitric acid; HNO3
  3. Sulfuric acid; H2SO4
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9
Q

Common lab alkalis containing OH-

A
  1. soduim hydroxide; NaOH
  2. potassium hydroxide; KOH
  3. Calcuim hydroxide; CaOH
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10
Q

acidic solutions

A

when the number of hydrogen ions is greater then the number of hydrooxide ions, an acidic solution is formed

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11
Q

alkaline (basic) solutions

A

when the number of hydroxide ions is greater than the number hydrogen ions, an alkaline solution is formed

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12
Q

Neutral solution

A

when the number of hydroxide ions is equal to the number og hydrogen ions, a neutral solution is formed

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13
Q

when a acidic solution diluted with water:

A
  1. the concentration of H+ decreases
  2. The pH of the solution increases towards 7
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14
Q

when an alkaline solution is diluted with water:

A
  1. the concentration of H+ increases
  2. the pH of the solution decreases towards 7
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15
Q

Neutralisation

A

Acids and bases can be added to one another to make a neutral solution

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16
Q

Neutralisation equcation

A

Acid+base ===> salt +water

17
Q

Neutralised by metal carbonates

A

in the neutralistation reaction between an acid and a metal carbonate, there are three products . The hydrogen ions form the acid react with the carbonate ions to form water and carbon dioxide gas. a salt is also produced

18
Q

Neutralised by metal carbonates equcation

A

Metal carbonate + acid ===> salt + water + carbon dioxide

19
Q

Titrations

A

a titration experiment can be carried out to accurately measure the volume of substances that react in chemical reaction

Chemistry: Unit 1 (6 decks)

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