Question

What is the total mass of 2.0 moles of diatomic hydrogen?

Answer 1

diatomic hydrogen is written as H2                                                                                (2.02 grams H2) <------- if each hydrogen atom is 1.01 grams, then two hydrogen atoms are 2.02 grams                                                                                                                  2.0 moles H2 X 2.02 grams H2                                                                                             ------------- (divide to cancel moles)   = 4.04 grams/mole H2 ÷ one mole = 4.04 grams H2

                                                          

Answer 2

Explanation:

A diatomic molecule is defined as the molecule which contains two atoms.

For example, a $H_{2}$ molecule has two atoms of hydrogen.

Molar mass of a $H_{2}$ molecule is 2.0 g/mol. Therefore, calculate the mass of 2.0 moles of diatomic hydrogen as follows.

        No. of moles = $\frac{mass}{\text{molar mass}}$

                2.0 mol = $\frac{mass}{2.0 g/mol}$

                mass = 1 g

therefore, we can conclude that total mass of 2.0 moles of diatomic hydrogen is 1 g.