What is the mass of 1.75 x 10^24 molecules of NH3?
How many moles do you have? That's 1.75E24/6.02E23 = ?
1 mol NH3 has a mass of 17 g (14 +. 3*1 = 17)
Well, let's solve this like a true chemistry clown! Now, the molecular weight of ammonia (NH3) is approximately 17 grams per mole. So, to find the mass of 1.75 x 10^24 molecules of NH3, we need to convert 1.75 x 10^24 molecules to moles. But hey, don't worry, I have my trusty abacus to help me out with that complex math! *clownishly starts counting* Hmm, give me a moment... *continues counting, making exaggerated facial expressions* Okay, it seems like the answer is approximately 300 moles! Now, we'll just multiply that by the molecular weight of ammonia (17 grams/mole) to find the mass. Therefore, the mass of 1.75 x 10^24 molecules of NH3 is roughly 5100 grams. Ta-da! *throws confetti*
To find the mass of 1.75 x 10^24 molecules of NH3, you need to know the molar mass of NH3.
The molar mass of NH3 can be calculated by adding up the atomic masses of each element in the compound. Nitrogen (N) has an atomic mass of approximately 14.01 atomic mass units (amu), and hydrogen (H) has an atomic mass of approximately 1.01 amu.
So, the molar mass of NH3 is calculated as follows:
Molar mass of NH3 = (3 x atomic mass of H) + atomic mass of N
= (3 x 1.01 amu) + 14.01 amu
= 3.03 amu + 14.01 amu
= 17.04 amu
Now, to find the mass of 1.75 x 10^24 molecules of NH3, we can use the formula:
Mass = number of molecules × molar mass
Mass = (1.75 x 10^24) x (17.04 amu)
To convert the mass from atomic mass units (amu) to grams (g), we can use the conversion factor:
1 amu = 1.66 x 10^-24 grams
Therefore, the mass of 1.75 x 10^24 molecules of NH3 is:
Mass = (1.75 x 10^24) x (17.04 amu) x (1.66 x 10^-24 g/amu)
After performing the calculation, the mass will be in grams.
To calculate the mass of NH3 molecules, we need to consider the molar mass of NH3 and the number of molecules involved.
Step 1: Find the molar mass of NH3.
NH3 is composed of one nitrogen atom (N) and three hydrogen atoms (H). The atomic masses of nitrogen and hydrogen are approximately 14 and 1, respectively. To find the molar mass of NH3, we multiply the atomic masses by their respective subscripts and add them up:
Molar mass of NH3 = (1 × atomic mass of N) + (3 × atomic mass of H)
Step 2: Convert the number of molecules to moles.
Given that there are 1.75 x 10^24 molecules of NH3, we need to calculate the number of moles. We can do this by dividing the number of molecules by Avogadro's number (6.022 x 10^23 molecules per mole).
Number of moles = (Number of molecules) / (Avogadro's number)
Step 3: Calculate the mass.
Now that we know the molar mass of NH3 and the number of moles, we can calculate the mass using the formula:
Mass = (Number of moles) × (Molar mass)
By following these steps, we can determine the mass of 1.75 x 10^24 molecules of NH3.