• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

Chemistry revision notes - 4 methods of making salts.

Extracts from this document...


4 Methods of Making Salt Method 1 : Acids + Metals 1. Many reactive metals form salts when reacted with acids 2. Displacement reaction ( X Neutralisation reaction) 3. When Metal and Acid react ? Salt and Hydrogen gas is formed 4. Only work for metals more reactive than hydrogen (But Aluminium doesn?t work because the impermeable layer aluminium oxide make it resistant to attack by acid) 5. Metals below hydrogen don?t react (e.g. copper, silver) & Metals at top of the reactivity series is never added to acid because they are too dangerous (e.g. sodium, potassium) Acid + Metal ? a Salt + Hydrogen E.G. ...read more.


Nitric acid always make nitrate, Sulfur acid always make sulfate, Hydrochloric acid always make chloride) - (e.g. Base contain Sodium ions always make sodium salt, base contain Potassium ions always make potassium salt) Bases Soluble Insoluble - Sodium, Potassium, Calcium Hydroxides & Calcium Oxides - Ammonia THEY ARE ALKALIS All other Oxides & Hydroxides (USE INSOLUBLE BASES IN THIS METHOD) Acid + Base ? a Salt + Water E.G. 6HCL(aq) + Fe2O3(s) ? 2FeCL3(aq) + 3H2O(l) Hydrochloric Acid + Solid Iron(III) Oxide ? Iron(III)Chloride Solution + Water Method 3 : Acid + Alkali (Soluble Base) ...read more.


Nitric Acid + Ammomia Solution ? Ammonium Nitrate + Water Method 4 : Precipitation to make Insoluble Salt 1. Insoluble salt can be made by reacting 2 solutions of soluble salts to produce a precipitate (insoluble solid) 2. Precipitation reaction 3. We need to know about the solubility of salt to decide whether a salt in soluble/insoluble Salts Soluble Insoluble All sodium, potassium, ammonium salts All other Carbonates Nitrates Most Chlorides, Bromides & Iodides Silver and Lead Chlorides, Bromides & Iodides Most Sufates Calcium & Barium Sulphate AZ(aq) + BY(aq) ? AY(s) + BX(aq) * AX, BY, BX are soluble(aq) & AY is insoluble(s) E.G. Pb(NO3)2(aq) +2KL(aq) ? Pbl2(s) + 2KNO3(aq) Lead Nitrate Solution + Potassium Iodide Solution ? Lead Iodide Precipitate + Potassium Nitrate Solution ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our GCSE Aqueous Chemistry section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related GCSE Aqueous Chemistry essays

  1. Marked by a teacher

    Enthalpy of Neutralisation.

    3 star(s)

    should neutralize in equal quantities only if they are both of the same concentration (in this case pure). If the hydrochloric acid was placed in a neutral substance which was the same volume as itself, it's strength would half and it would therefore have a ratio of 2:1 with pure

  2. Production of Epsom salts

    + H2S04(ag) � MgS04(ag) + H2(g) Results When a piece of magnesium with mass more than 0.24g is added to 10cm3 of 1.00 mol dm-3 sulphuric acid 0.24g of magnesium will react with the sulphuric acid in the solution. The rest of the magnesium will not react because there is not enough sulphuric acid in the solution.

  1. Determine Solubility of KClO3 Salt.

    The solution is stirred and if all the salt dissolved, more KClO3 salt is added while stirring. Process is continuing until a saturated solution is obtained. 6. 5cm3 of the solution is transferred into a crucible using the pipette that has already been accurately weighed.

  2. I am part of a small chemical company who are attempting to sell Epsom ...

    This means the ions have become denatured so the metal cannot react with the acid. The optimum temperature for a molecule is usually approximately 40oC. This means that the reaction works most effectively at this temperature. Pressure - A high magnitude of pressure could be enforced to the reaction.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work