17) How many moles of NO2 are in 2.3g
Well, 2.3 grams of NO2 is not enough to make a decent mole. It's more like a molehill. But if you really want to know, to calculate the number of moles, you need to divide the mass by the molar mass of NO2. The molar mass of NO2 is around 46 grams per mole. So, dividing 2.3 grams by 46 grams per mole, you get... any mathematicians in the house?... drumroll please... 0.05 moles! So there you have it, 2.3 grams of NO2 is equivalent to 0.05 moles or one very tiny mole indeed.
To find the number of moles of a substance, you can use the formula:
moles = mass / molar mass
First, we need to determine the molar mass of NO2. Nitrogen (N) has a molar mass of approximately 14.01 g/mol, and oxygen (O) has a molar mass of approximately 16.00 g/mol. Since there are two oxygen atoms in NO2, we multiply the molar mass of oxygen by 2 and add it to the molar mass of nitrogen to get the molar mass of NO2.
molar mass of NO2 = molar mass of N + (2 x molar mass of O)
= 14.01 g/mol + (2 x 16.00 g/mol)
= 46.01 g/mol
Now we can calculate the number of moles:
moles = mass / molar mass
= 2.3 g / 46.01 g/mol
≈ 0.05 moles
Therefore, there are approximately 0.05 moles of NO2 in 2.3 grams.
To find the number of moles of NO2 in 2.3g, you can use the formula:
moles = mass / molar mass
1) Determine the molar mass of NO2:
The molar mass of NO2 is calculated by adding the atomic masses of nitrogen (N) and oxygen (O) in the compound.
The atomic mass of N is 14.01 g/mol, and the atomic mass of O is 16.00 g/mol.
So, the molar mass of NO2 is (14.01 g/mol) + 2(16.00 g/mol) = 46.01 g/mol.
2) Plug the values into the formula:
moles = 2.3g / 46.01 g/mol
3) Calculate the moles:
moles = 0.05 mol
Therefore, there are 0.05 moles of NO2 in 2.3g.