8/17/2019 Rate of Gas Production

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Rate of Gas Production

Background:

• Hydrochloric acid when reacted with Zinc metal produces Zinc Chloride and

Hydrogen Gas

•

We can measure the amount of gas produced by using the deal Gas !aw andplugging in the known "ariables#

$oes temperature affect the rate of reaction between Hydrochloric acid and Zinc metal%

Hypothesis& f the temperature of the Hydrochloric 'cid solution is increased( the rate ofreaction to produce hydrogen gas between it and )inc metal will also increase because asthe temperature is increased by *+ C( the rate will double gi"en 'rrhenius, e-uation#

.&/emperature of 'cid!e"els&n( n0*+( n01+( where n is the starting temperature of the acid in Celsius/rials&2

$.&Rate of reaction 3mols4minute5C.,s&Concentration of the acid( time of reaction( flask si)e( form of Zinc( temperature ofZinc#

6aterials:

• Zinc metal

• Hydrochloric acid 31 6ol5

• 7lasks

• Beaker 

• /hermometer 

• Balloons

6ethod*# 6easure 8+ml of 1 mol HCl into the 9rlenmeyer flask#1# 6easure the temperature of the acid#2# Pour 8 grams of )inc dust into the solution and -uickly co"er it with a balloon## /ime the reaction for 8 minutes while collecting the gas#8# ;se the gas syringe to measure the gas collected#

8/17/2019 Rate of Gas Production

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/ransformed $ata

23.3 33.299999999999997 43.3

0

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140

 Trial 1

 Trial 2

 Trial 3

Conclusion/he hypothesis was pro"en because the rate of hydrogen gas production in the reaction

between hydrochloric acid and )inc increased as the temperature of the acid was increased#When the temperature of the acid was at its highest( 2o C( the rate of gas produced was+#++8?1 mol4min# 't room temperature( the rate of hydrogen gas production was @ust+#++*8? mol4min# 's the temperature was increased by *+o C( the rate approAimatelydoubled( as hypothesis states#

9"aluation of 6ethod