Question

Calculate the number of atoms of sodium in 0.125mol of sodium oxide​

Answer 1

Therefore, there are approximately 1.506 x 10^23 sodium atoms in 0.125 mol of sodium oxide.

Step-by-step explanation:

The chemical formula of sodium oxide is Na2O, which means there are 2 sodium atoms for each molecule of Na2O.

We can use Avogadro's number to calculate the number of sodium atoms in 0.125 mol of Na2O:

1 mol of Na2O contains 2 mol of Na atoms (according to the formula Na2O).

So, the number of moles of Na atoms in 0.125 mol of Na2O is:

2 x 0.125 mol = 0.25 mol

Using Avogadro's number, we can calculate the number of sodium atoms in 0.25 mol:

Number of atoms = (0.25 mol) x (6.022 x 10^23 atoms/mol)

Number of atoms = 1.506 x 10^23 atoms

Therefore, there are approximately 1.506 x 10^23 sodium atoms in 0.125 mol of sodium oxide.

Answer 2

The chemical formula of sodium oxide is Na2O, which means that for every one mole of Na2O, there are two moles of sodium atoms. Thus, we can calculate the number of moles of sodium atoms in 0.125 mol of Na2O as follows:

Number of moles of sodium atoms = 2 x 0.125 mol = 0.25 mol

Next, we can use Avogadro's number, which is approximately 6.022 x 10^23 particles per mole, to calculate the number of atoms of sodium in 0.25 mol:

Number of atoms of sodium = 0.25 mol x 6.022 x 10^23 atoms/mol

= 1.506 x 10^23 atoms

Therefore, there are approximately 1.506 x 10^23 atoms of sodium in 0.125 mol of sodium oxide.

Hope this helps!