0
Avagadro's number says there are 6.02x1023 particles of a pure substance in one mole of that pure substance. (A particle is an atom, molecule, or ion.)
(2.1 mol CO2) (6.02x1023 molecules CO2/1 mol CO2)
= (2.1)( 6.02x1023 molecules CO2) = 1.26 x 1024 molecules CO2
There are approximately 1.26 x 10^24 molecules in 2.1 mol of CO2. This is calculated by multiplying Avogadro's number (6.022 x 10^23) by the number of moles.
Add your answer:
Earn +20 pts
What is the number of carbon atoms in 2.5 x 1021 molecules of carbon dioxide?
Each molecule of carbon dioxide (CO2) contains 1 carbon atom. Therefore, in 2.5 x 10^21 molecules of carbon dioxide, there are 2.5 x 10^21 carbon atoms.
Determine the mass of 21 mol N?
To determine the mass of 21 mol of nitrogen (N), you need to know the molar mass of nitrogen, which is approximately 14.01 g/mol. Mass = Number of moles * Molar mass Mass = 21 mol * 14.01 g/mol = 294.21 g Therefore, the mass of 21 mol of nitrogen is approximately 294.21 grams.
How many atoms are in 9.7X10-3 mol C?
There are approximately 5.84 x 10^21 carbon atoms in 9.7 x 10^-3 mol of carbon. This is calculated by multiplying Avogadro's number (6.022 x 10^23 atoms/mol) by the number of moles of carbon given.
What is concentration oxygen in air?
The concentration of oxygen in air is approximately 21%. This means that out of every 100 molecules in the air, around 21 molecules are oxygen. Oxygen is essential for respiration in many organisms, including humans.
How many grams of NH3 are needed to provide the same number of molecules as in 0.55 grams of SF6?
molar mass NH3 = 17 g/molmolar mass SF6 = 146 g/molmolecules in 0.55g SF6 = 0.55g x 1mol/146g x 6.02x10^23 molecules/mole = 2.27x10^21 moleculesgrams NH3 needed = 2.27x10^21 molecules x 1mol/6.02x10^23 molecules x 17g/mol = 0.064 grams
3920 molecules CO2 to moles CO2?
To convert 3920 molecules of CO2 to moles of CO2, you need to divide the number of molecules by Avogadro's number, which is approximately 6.022 x 10^23. So, 3920 molecules of CO2 is equivalent to approximately 6.51 x 10^-21 moles of CO2.
How do you convert 4830 molecules CO2 to moles CO2?
To convert molecules to moles, you use Avogadro's number which is 6.022 x 10^23 molecules/mol. Divide the number of molecules (4830) by Avogadro's number to find the moles of CO2. In this case, 4830 molecules CO2 is equal to 8.01 x 10^-21 moles CO2.
How many air molecules in atmosphere?
The mass of the Earth's atmosphere is 5.25x10^21 grams. If we assume the molar mass of air is approximately 29 grams per mole we get:(5.25x10^21) multiplied by Avogadro's constant (6.02x10^23) and then divided by (29 grams/ mol) = 1.09x10^44 molecules of air in the atmosphere.
How many molecules are in 0.03 mol of carbon dioxide?
There are approximately 1.8 x 10^22 molecules in 0.03 mol of carbon dioxide. This is calculated by multiplying Avogadro's number (6.02 x 10^23) by the number of moles.
What is the number of carbon atoms in 2.5 x 1021 molecules of carbon dioxide?
Each molecule of carbon dioxide (CO2) contains 1 carbon atom. Therefore, in 2.5 x 10^21 molecules of carbon dioxide, there are 2.5 x 10^21 carbon atoms.
How many molecules of S8 would be necessary to obtain 1.000 g of S?
(6.022*10^23) * [1.000 (g) / (8 * 32.00 (g/mol)] = 2.352*10^21 molecules
How many moles of HCI do you need to react with aluminum foil if you use 15 grams of acid?
0.2550 g AlC3 (1 mol/132 g) =0.001932 mol AlCl3 0.001932 mol AlCl3 (6.022 x 10^23 molecules AlCl3/1 mol AlCl3) = 1.163 x 10^21 1.163x10^21 molecules AlCl3 (3 mol Cl/1 mol AlCl3) =3.490x10^21 Cl ions 3.490x10^21 Cl ions (1 mol/6.022 x 10^23) =5.795x10^-3 moles Cl The formula to solve this problem appears above.
How many molecules are in 0.325 of aspirin using formula mass 180.2 amu?
To find the number of molecules in 0.325 g of aspirin, first calculate the number of moles: 0.325 g / 180.2 g/mol = 0.0018 moles. To find the number of molecules, use Avogadro's number (6.022 x 10^23 molecules/mol): 0.0018 moles x 6.022 x 10^23 molecules/mol = 1.0876 x 10^21 molecules.
What is the mass of 3.97x1021 molecules dinitrogen tetraoxide?
To calculate the mass of 3.97x10^21 molecules of dinitrogen tetraoxide, you first need to find the molar mass of dinitrogen tetraoxide (N2O4), which is about 92.02 g/mol. Then you can use Avogadro's number (6.022x10^23 molecules/mol) to convert molecules to moles and then multiply by the molar mass to find the mass.
How many atoms are in 5.58 mol of CO2?
In one (1) molecule CO2 there are 3 atoms ( 1 C-atom and 2 O-atoms), so in 5 molecules CO2 (5CO2) there are 5 x 3 (= 15) atoms. Thus fifteenis the answer to you.
How many out of 200 air molecules are oxygen?
Air is 21% oxygen so 21% of 200 is 42 oxygen molecules.
How many moles of O2 is in 2.045 x 10 21 molecules of O2?
First, calculate the molar mass of O2 (molecular weight = 32 g/mol). Then, convert the given number of molecules to moles using Avogadro's number (6.022 x 10^23 molecules/mol). The result would be approximately 0.067 moles of O2.
