To determine what represents 1% of the mass, you need to know the total mass you're working with.

Here's how it works:

* 1% means one out of every one hundred.

* To find 1% of a mass, divide the total mass by 100.

Example:

If you have a bag of flour weighing 500 grams:

* 1% of 500 grams = (500 grams / 100) = 5 grams

So, 5 grams would represent 1% of the mass of the bag of flour.