Role of calcium chloride in preparation of hydrochloric gas
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The REACTION is: CaCO3 + 2HCl -> CaCl 2 + H2O + CO2
AIM: Investigate factors affecting rate of reaction between calcium carbonate and hydrochloric acid.
METHOD: Fill measuring cylinder with water Half fill water basin with water Invert measuring cylinder whilst covering open end withhand 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 while starting stopwatch.
Every 30s starting from 0s take a measurement of how much air there is in measuring cylinder (cm3).
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.
HOPE IT WILL HELP YOU FRIEND.
AIM: Investigate factors affecting rate of reaction between calcium carbonate and hydrochloric acid.
METHOD: Fill measuring cylinder with water Half fill water basin with water Invert measuring cylinder whilst covering open end withhand 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 while starting stopwatch.
Every 30s starting from 0s take a measurement of how much air there is in measuring cylinder (cm3).
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.
HOPE IT WILL HELP YOU FRIEND.
Answered by
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Answer:
to absorb moisture....
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