[Mikez]

I came across this equation in my textbook:

mass x avogadro's numbers = molar mass

there was no explaination or anything

Can someone please help me and explain why this is true or whether is was a misprint.

[Borek]

mass x avogadro's numbers = molar mass

Should start with molecule mass.

[ARGOS++]

Dear Mikez;

Compare it with:   http://urila.tripod.com/mole.htm

Good Luck!
                    ARGOS⁺⁺

[Mikez]

mass x avogadro's numbers = molar mass

Should start with molecule mass.

I just typed out exactly what was in the book (in section on average speed of gas atoms)

It specifically said "mass x (avogadro's number) = molar mass 

[Mikez]

I tested out one of the questions and checked the answer.

It is indeed the molar mass of the element.

plugged He Molar mass = 4 g/mol and got the same number as back of the book

[Borek]

Show details of what you did, as your post is ambiguous. We do't know what was the number that you got and what it described. As of now it can be anything, inlcuding number of whales in the South Pacific