Question

what is the correct molar mass for a molecule of hydrogen (H2)?

Answer 1

Give me a min to figure out

Answer 2

1.00794 er this is what I got

Answer 3

A.1.01 g/mol
B.2.02 g/mol
C. 1 g/mol
D.2 g/mol

Answer 4

B

Answer 5

what is a molecular mass?

Answer 6

Molecular mass or molecular weight refers to the mass of a molecule. It is calculated as the sum of the mass of each constituent atom multiplied by the number of atoms of that element in the molecular formula. @nincompoop Googles ur bestfriend

Answer 7

A molar mass is the molecular weight in grams. H2 has a molecular weight of 2

Answer 8

nice definition, but what does it mean?

Answer 9

If it means mass per molecule, then divide the grams needed for a mole by the number in a mole, which is 6.02 x 10^23

Answer 10

if a hydrogen has an estimated molecular mass of 1 gram (1 mu), then how many grams are there in two hydrogens?

Now you might ask, where did I get the information that a hydrogen atom has 1 mu. You simply have to look at a periodic table and see it for yourself. I hope you know how to read a periodic table :)

Answer 11

are mole and molar mass the same @douglaswinscooper ?

Answer 12

http://www.chem.memphis.edu/bridson/FundChem/T11a1100.htm

Answer 13

I meant to type AMU instead of MU earlier

Answer 14

Ah. How wrong I have been. molar mass as moles/g is the reciprocal of grams/mole, the molecular weight. Odd phrase, one I was not familiar with. Sorry.

Answer 15

molar mass is not the reciprocal of molecular weight, they're synonyms (kind of).

molar mass is the mass (in g) of 1 mole (of whatever).

molecular mass is the same thing, except it's only used for molecules (opposed to formula units (ionic compounds) which use the term "formula weight" or "atomic mass" which refers only to atoms).

To avoid confusion just use molar mass, which is a general term of all molecules, atoms, ionic compounds.