# What is the mass of one mole of an element?

The mass will be the atomic mass of the element in grams.

### Is atomic mass the mass of an element?

Not technically, it is the measurement of the mass of the nucleus within the atom of the element, which is not equal to the entire mass of the element, but most of it. For instance, an element with an atomic mass of 1 (hydrogen) has one particle within it's nucleus. Actually, its the mass of 1 mole of an element (a mole being 6.02x10^23 atoms) So 6.02x10^23 hydrogen atoms= 1 gram

### If 6.02 x 1023 atoms of element y have a mass of 83.80 g what is the identity of y?

6.02 x 1023 atoms of an element is one mole of that element. The mole, based on Avagadro's number, is defined as the number of Carbon atoms that would have a mass of 12 grams. This is a scaling factor related to atomic mass. Krypton has an atomic mass of 83.8, so if a mole of an unknown element is 83.8 grams, then that element is Krypton.

### Explain how to calculate the molar mass of a compound?

You would take the molar mass of each element that is in the compound and add them up. For example, H2O would be 2 hydrogen atoms and one oxygen. 1+1+16 equals 18. ........................................................................................................................................ in order to calculate the molar mass of a compound, multiply the mass of 1 mole of each element by the ratio of that element to one mole of the compound then add the resulting masses.

### What is the approximate mass of 238 U 92?

238 grams/mole The isotopic number is the approximate mass for any element. Such as if I say Carbon 14, the approximate mass is 14 grams/mole. If you are asking what is the mass of one atom of Uranium 238: Then you take the isotopic mass 238 grams/mole and divide by Avogadro's Number 6.022X10^23 atoms/mole this gives you units of grams/atom.