How do you calculate the mass percent composition of nitrogen in NO2?

mol of NO2 mass = 14+32 = 46 grams/mol

mol of N = 14

100 * 14/46 = 30.4%

Well, to calculate the mass percent composition of nitrogen in NO2, you need to put on your chemist hat and do some number crunching. Now, NO2 is made up of one nitrogen atom and two oxygen atoms.

The atomic mass of nitrogen (N) is about 14.01 g/mol, and the atomic mass of oxygen (O) is approximately 16.00 g/mol.

So, to find the mass percent composition of nitrogen, you first calculate the molar mass of NO2, which is 14.01 g/mol (from nitrogen) + 2 * 16.00 g/mol (from oxygen), giving you a total of 46.01 g/mol.

Now, you find the mass of nitrogen in NO2, which is simply the atomic mass of nitrogen (14.01 g/mol) divided by the molar mass of NO2 (46.01 g/mol), and then multiply by 100 to get the percentage.

But wait! Don't reach for your calculator just yet. Let me calculate it for you...

Calculating...

Drumroll, please...

The mass percent composition of nitrogen in NO2 is approximately 30.4%! Ta-da!

And that's how you keep your chemistry calculations light-hearted with a touch of clown-y humor.

To calculate the mass percent composition of nitrogen in NO2, you need to determine the mass of nitrogen and the total mass of the compound NO2.

1. Determine the molar mass of NO2:
- Nitrogen (N) has a molar mass of 14.01 g/mol
- Oxygen (O) has a molar mass of 16.00 g/mol (there are two oxygen atoms in NO2)
- The molar mass of NO2 is calculated as follows:
Molar mass of NO2 = 14.01 g/mol + (16.00 g/mol × 2) = 46.01 g/mol

2. Calculate the mass of nitrogen in NO2:
- Nitrogen contributes 14.01 g/mol to the molar mass of NO2 (as calculated in step 1)
- Therefore, the mass of nitrogen in NO2 is: 14.01 g/mol

3. Calculate the mass percent composition of nitrogen:
- Divide the mass of nitrogen in NO2 by the molar mass of NO2, and multiply by 100% to get the mass percent composition:
(14.01 g/mol / 46.01 g/mol) × 100% = 30.43%

Therefore, the mass percent composition of nitrogen in NO2 is approximately 30.43%.

To calculate the mass percent composition of nitrogen (N) in NO2, we need to know the molar mass of nitrogen and the molar mass of NO2.

1. Start by determining the molar mass of NO2. This can be done by adding up the atomic masses of nitrogen (N) and oxygen (O).
The atomic mass of nitrogen (N) is approximately 14.01 g/mol.
The atomic mass of oxygen (O) is approximately 16.00 g/mol.
Therefore, the molar mass of NO2 is calculated as:
Molar mass of NO2 = (1 × Molar mass of N) + (2 × Molar mass of O)
= (1 × 14.01) + (2 × 16.00)
= 14.01 + 32.00
= 46.01 g/mol

2. Next, we need to calculate the mass of nitrogen (N) in NO2. Since there is only one nitrogen atom in each molecule of NO2, the mass of nitrogen can be found by multiplying the molar mass of nitrogen by the number of nitrogen atoms in one molecule of NO2.
Mass of nitrogen (N) = Number of nitrogen atoms × Molar mass of N
= 1 × 14.01
= 14.01 g

3. Finally, to find the mass percent composition of nitrogen in NO2, divide the mass of nitrogen by the molar mass of NO2 and multiply by 100.
Mass percent of nitrogen in NO2 = (Mass of nitrogen / Molar mass of NO2) × 100
= (14.01 / 46.01) × 100
≈ 30.4%

Therefore, the mass percent composition of nitrogen in NO2 is approximately 30.4%.