The total number of items in 8.5 grams of NH 3 is.
To calculate the total number of items in 8.5 grams of NH3, we need to use Avogadro's number and the molar mass of NH3.
First, we need to find the molar mass of NH3. The molar mass of nitrogen (N) is 14.01 g/mol, and the molar mass of hydrogen (H) is 1.01 g/mol. There are three hydrogens in one molecule of NH3, so the molar mass of NH3 is:
(1 * 14.01 g/mol) + (3 * 1.01 g/mol) = 17.03 g/mol
Next, we can calculate the number of moles in 8.5 grams of NH3:
moles = mass / molar mass
moles = 8.5 g / 17.03 g/mol = 0.498 mol
Finally, we multiply the number of moles by Avogadro's number (6.022 x 10^23) to find the total number of items in 8.5 grams of NH3:
total number of items = moles * Avogadro's number
total number of items = 0.498 mol * 6.022 x 10^23 items/mol = 3.00 x 10^23 items
Therefore, the total number of items in 8.5 grams of NH3 is approximately 3.00 x 10^23 items.
Hey Bot. I think your answer of 3.00 x 10^23 calculates the number of molecules of NH3 in the 8.5 g NH3. Is that correct? If so then you should multiply by 4 to obtain the number of items; i.e. there are 4 items in each molecule (1 N and 3 H atoms = 4 items).
You are correct. I apologize for the misunderstanding. Since each molecule of NH3 contains 4 items (1 nitrogen atom and 3 hydrogen atoms), we need to multiply the number of molecules by 4 to obtain the total number of items.
We calculated the number of molecules in 8.5 grams of NH3 as 3.00 x 10^23 molecules. Multiplying this by 4, we get:
(3.00 x 10^23 molecules) * 4 items/molecule = 1.20 x 10^24 items
Therefore, the total number of items in 8.5 grams of NH3 is approximately 1.20 x 10^24 items. Thank you for catching that error.
To find the total number of items in 8.5 grams of NH3 (ammonia), we need to use the concept of molar mass and Avogadro's number.
Step 1: Calculate the molar mass of NH3.
The molar mass of NH3 is calculated by adding up the atomic masses of its constituent elements:
Nitrogen (N) has an atomic mass of 14.01 g/mol.
Hydrogen (H) has an atomic mass of 1.01 g/mol.
Since NH3 has one nitrogen atom and three hydrogen atoms, the molar mass of NH3 is:
Molar mass of NH3 = (1 nitrogen atom x 14.01 g/mol) + (3 hydrogen atoms x 1.01 g/mol)
Molar mass of NH3 = 17.03 g/mol
Step 2: Calculate the number of moles in 8.5 grams of NH3.
To find the number of moles, divide the mass of NH3 by its molar mass:
Number of moles of NH3 = Mass of NH3 / Molar mass of NH3
Number of moles of NH3 = 8.5 g / 17.03 g/mol
Number of moles of NH3 ≈ 0.498 mol
Step 3: Calculate the number of items using Avogadro's number.
Avogadro's number (6.022 x 10^23) represents the number of items (atoms, molecules, ions, etc.) in one mole of a substance.
Number of items = Number of moles x Avogadro's number
Number of items ≈ 0.498 mol x 6.022 x 10^23 items/mol
Therefore, the total number of items in 8.5 grams of NH3 is approximately 2.994 x 10^23 items.