A student decides to test a drop of the mixture every 10 seconds instead of every 60 seconds. What is the main advantage of doing this?

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Question

A student decides to test a drop of the mixture every 10 seconds instead of every 60 seconds. What is the main advantage of doing this?

Accepted Answer

The recorded end point is closer to the true time, so the result is more precise — Award 1 mark. Sampling every 60 seconds could place the true end point anywhere in a whole minute, which is a large uncertainty on reactions lasting under two minutes.

Answer

It removes the need to control the temperature of the mixture

Answer

It converts the result from a time into a rate automatically

Answer

It makes the enzyme break down the starch more quickly

Answer

The recorded end point is closer to the true time, so the result is more precise

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