CalciumCarbonate + Hydrochloric Acid —> Calcium Chloride + Water + Carbon Dioxide CaCO3 +2HCl —> CaCl 2 + H2O + CO2 Aim Method & Diagram

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Calcium Carbonate + Hydrochloric Acid —> Calcium Chloride + Water + Carbon Dioxide

CaCO3 + 2HCl —> CaCl 2 + H2O + CO2

Aim

Investigate factors affecting rate of reaction between calcium carbonate and hydrochloric acid.

Method & Diagram

Fill measuring cylinder with water 

Half fill water basin with water 

Invert measuring cylinder whilst covering open end with hand 

Submerge measuring cylinder (End with hand on) 

Put 25ml of acid into the conicle flask 

Have 2.0g of marble chips ready 

Put end of pipe into submerged conicle flask 

Prepare to start stopwatch 

Put marble chips in with acid & put bung on conicle flask whilst starting stopwatch 

Every 30s starting from 0s take a measurement of how much air there is in measuring cylinder (cm3) 

Join now!

When you have done this with the first concentration of acid clean out the conicle flask and refill the measuring cylinder & repeat experiment with next concentration of acid.


Equipment
 

  • Water 
  • Conicle Flask 
  • Bung 
  • Marble chips 
  • Water Basin 
  • Tube 
  • Acid amounts (0.25M, 0.5M, 1.0M, 1.5M, 2.0M) 
  • Timer

Vairiables

Concentration of acid -> higher the concentration faster the reaction 

Mass of limestone - (Which is not changed other than test specs) 

Surface area of limestone - Greater the surface area -> faster rate of reaction 

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