10 Questions
Which solution is produced when sodium thiosulfate and hydrochloric acid react?
An insoluble precipitate of sulfur
What is the purpose of the cross drawn on a piece of paper?
To observe when the cloudy yellow color gets too thick
What is the role of the concentration of sodium thiosulfate in the experiment?
To determine the time it takes for the precipitate to form
What happens to the solution when the precipitate of sulfur is formed?
It changes from clear and colorless to a yellow cloudy color
How much sodium thiosulfate is mixed with hydrochloric acid in the experiment?
50 centimeters cubed
During the reaction, the solution changes from clear and colorless to a ______ cloudy color.
yellow
The rate of the chemical reaction is measured by timing how long it takes for the ______ yellow color to get so thick that it can't be observed.
cloudy
To measure the rate of the reaction, a _____ is drawn on a piece of paper and placed underneath the reaction vessel.
cross
The concentration of ________ is varied in the experiment to observe its effect on the time it takes for the precipitate to form.
sodium thiosulfate
The sodium thiosulfate is mixed with _______ in the experiment.
hydrochloric acid
Test your knowledge on measuring the rate of chemical reactions with this quiz! Specifically, this quiz will focus on the reaction between sodium thiosulfate and hydrochloric acid, where a clear and colorless solution transforms into an insoluble precipitate of sulfur. See how well you understand the process of measuring reaction rates in this engaging quiz.
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