How much mass does a slice of bread have?

Answer 1

This question is difficult because you don't have a succinct definition for "Bread". If you make dough, and use liquids (milk, water, the water in eggs, etc.), then when you bake the bread, some of the water will evaporate. This will reduce the mass of the loaf of bread, because the water has gone elsewhere, but the water itself will retain their own mass. So yes -- when you bake bread, evaporation reduces the mass of the dough you started with.

Answer 2

The mass of the bread would not become more or less, but it would become more dense. "Density" refers to how close together the particles making up an object are grouped together.

Here's a very basic example to explain what I mean: Let's say that you got two plastic bags. They're the same exact size. If you put twenty marshmallows in each bag, they would have the exact same amount of "stuff" in them.

But if you took one bag and then smashed it in your fist, it would get a lot smaller than the other bag right? Well, the actual amount of marshmallows doesn't change does it? There are still twenty in each bag, so the mass doesn't change. But the marshmallows in the bag you crushed got packed very tightly together, so it is more dense.

Answer 3

the bread will begin to absorb moisture making it retain more weight

Answer 4

Between 26 and 31 grammes.

Answer 5

No