method 2 ( volume of hydrogen)

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measuring the volume of hydrogen produced in a reaction
magnesium + hydrochloric acid $\rightarrow$ magnesium chloride + hydrogen
using a measuring cylinder measure 50cm $^3$ of hydrochloric acid in a conical flask
attach a bung and delivery tube
place the delivery tube in a container filled with water
place a measuring cylinder overturned with water on top of the delievery tube
add 3cm strip of magnesium to the hydrochloric acid and start a stopwatch
every 10 seconds , measure the volume of hydrogen until the reaction is finished
repeat the experiment using different concentrations of hydrochloric acid
the two experiments show the experiment is reproducible and is proven by two different experiments

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method 2 ( volume of hydrogen)

Cards (4)

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