Chemistry: Nitrogen reacts with a metal to form a compound in which there are three atoms of the metal for each atom of nitrogen. if 1.486 g of the metal reacts with 1.000 g of nitrogen, what is the calculated atomic mass of the metal? use your calculated atomic mass to identify the metal. (for your answer, input the proper chemical symbol for element x.)

Synthesis or a combination reaction. Two of the reactants form one final product in the end....

Nitrogen reacts with a metal to form a compound in

Ответ:

mustafa455486a

03.01.2022

Chemistry

$\boxed{\text{6.937 u; X = Li}}$

Explanation:

1. Write the unbalanced equation

X + N₂ ⟶ X₃N

2. Balance the equation and gather all the data.

MM: 28.01

6X + N₂ ⟶ 2X₃N

m/g 1.486 1.000

3. Calculate the moles of N₂

$\text{Moles of N}_{2} = \text{1.000 g N}_{2} \times \dfrac{\text{1 mol N}_{2}}{\text{28.01 g N}_{2}} = \text{0.035 70 mol N}_{2}$

4. Calculate the moles of X

The molar ratio is 6 mol X: 1 mol N₂

$\text{Moles of X} = \text{0.035 70 mol N}_{2} \times \dfrac{\text{6 mol X}}{\text{1 mol N}_{2}} = \text{0.2142 mol X}$

5. Calculate the molar mass of X

$\text{Molar mass} = \dfrac{\text{mass}}{\text{moles}} = \dfrac{\text{1.486 g}}{\text{0.2142 mol}} = \text{6.937 g/mol}\\\text{The molar mass of X is 6.937 g/mol, so the atomic mass $\boxed{\textbf{6.937 u}}$}$

6. Identify X.

$\text{X has an atomic mass of 6.937 u, so $\boxed{\textbf{X = Li}}$ (at. mass 6.94 u)}$

0,0(0 оценок)

Ответ:

Ответ:

Ask your question to the AI advisor

More tips

Answers on questions: Chemistry

Ask an AI advisor a question