Rate experiments involving precipitation (Edexcel GCSE Chemistry): Flashcards
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Practise the cards
15 cards from this deck
Product formed from sodium thiosulfate + HCl
Product formed from sodium thiosulfate + HCl
Yellow solid sulfur
What happens to solution when sulfur forms
What happens to solution when sulfur forms
Goes cloudy
Equipment to measure solution volumes
Equipment to measure solution volumes
Measuring cylinder
How much of each solution to use
How much of each solution to use
Fixed amounts
Method to heat solutions to desired temperature
Method to heat solutions to desired temperature
Water bath
What flask is placed over during experiment
What flask is placed over during experiment
Paper with black mark (cross)
When to start timer
When to start timer
As soon as solutions are mixed
When to stop timer
When to stop timer
When black mark can't be seen anymore
Variable to test reaction speed
Variable to test reaction speed
Temperature
Volume control requirement
Volume control requirement
Always use same amounts of both solutions
Concentration control requirement
Concentration control requirement
Must stay the same throughout
Effect of higher temperature on particles
Effect of higher temperature on particles
Particles move faster
Why faster particles speed up reaction
Why faster particles speed up reaction
They collide more often
What shorter disappearance time indicates
What shorter disappearance time indicates
Faster reaction
How to measure reaction rate using cloudiness
How to measure reaction rate using cloudiness
Time until mark disappears through solution