hydrogen gas produced

Cards (10)

what is the product of sodium thiosulfate solution + hydrochloric acid
sulfur, a solid
how much hydrochloric acid do we put into the conical flask after measuring it in a measuring cylinder?
50cm (cubed)
what do we attach the conical flask to after adding the hydrochloric acid?
a bung and delivery tube
what do we place the delivery tube into?
a container filled with water
what else do we place on top of the delivery tube?
an upturned measuring cylinder also filled with water
what do we add to the hydrochloric acid before starting a stopwatch?
a 3cm strip of magnesium
what will the reaction produce?
hydrogen gas which is trapped in the measuring cylinder
what do we do every 10 seconds?
we measure the volume of hydrogen gas in the measuring cylinder
how long do we continue measuring the volume of hydrogen gas in the measuring cylinder?
until no more hydrogen is given off
what do we do when repeating the experiment?
use different concentrations of hydrochloric acid