Relative Atomic Masses:
Fe = 55.84 F = 18.9
You have 3 F so, 18.9 * 3 = 56.7
56.7 + 55.84 = 112.54
This is our formula mass.
24 * (1 mol/112.54) = 0.2127 Mols. - Number of moles in FeF3
* by Avogadro Constant:
0.2127 * 6.02 x10^23 =
1.280 x10^23 molecules
:)
To determine the number of moles of N2O3 containing 2.55 x 10^24 oxygen atoms, we first calculate the molar mass of N2O3, which is 76.01 g/mol. Next, we find the number of moles of oxygen atoms in 2.55 x 10^24 atoms by dividing the given number by Avogadro's number (6.022 x 10^23 atoms/mol). This gives us approximately 4.24 moles of oxygen atoms. Since each mole of N2O3 contains 3 moles of oxygen atoms, the number of moles of N2O3 containing 2.55 x 10^24 oxygen atoms is 4.24 moles / 3 = 1.41 moles.
There are 1/6.022 x 1023 = 1.66 x 10-24 moles of oxygen in 1 molecule of O2.
Oxygen gas (O2) is diatomic, meaning it consists of two oxygen atoms chemically bonded together. Therefore, to determine the number of atoms in oxygen gas, we consider the molecular formula. In one molecule of oxygen gas (O2), there are two oxygen atoms. Avogadro's number (6.022 x 10^23) represents the number of entities (atoms, molecules, etc.) in one mole of a substance. Therefore, in one mole of oxygen gas, there are 2 moles of oxygen atoms, equivalent to approximately 1.204 x 10^24 oxygen atoms.
Oxygen is a gas at 24 degrees Celsius.
To find empirical formulas, masses of elemental reactants must be changed to gram atoms by dividing the mass by the gram atomic masses of each element. Thus, 16 grams of sulfur constitutes 16/32.06 or 0.50 mole to the justified number of significant digits, and 24 grams of oxygen constitutes 24/15.9994 or 1.50 moles of oxygen to the justified number of significant digits. Therefore, the atomic ratio of oxygen to sulfur in the compound is 1.50/0.50 or 3, and the empirical formula is SO3.
To determine the number of moles of N2O3 containing 2.55 x 10^24 oxygen atoms, we first calculate the molar mass of N2O3, which is 76.01 g/mol. Next, we find the number of moles of oxygen atoms in 2.55 x 10^24 atoms by dividing the given number by Avogadro's number (6.022 x 10^23 atoms/mol). This gives us approximately 4.24 moles of oxygen atoms. Since each mole of N2O3 contains 3 moles of oxygen atoms, the number of moles of N2O3 containing 2.55 x 10^24 oxygen atoms is 4.24 moles / 3 = 1.41 moles.
There are 1/6.022 x 1023 = 1.66 x 10-24 moles of oxygen in 1 molecule of O2.
Ar of O = 16g/mol Mr of O2 = 2(16) = 32g/mol Using the formula : Number of moles = mass / Mr Number of moles = 40g / 32g/mol = 1.25mols One mole of substance contains the same number of particles as the Avogadro constant, which is 6.02 x 10^23 Number of Oxygen molecules = 1.25 x 6.02 x 10^23 = 7.525 x 10^23 Each Oxygen molecules contain two Oxygen atoms Number of Oxygen atoms = 7.525 x 10^23 = 1.505 x 10^24 atoms
Oxygen gas (O2) is diatomic, meaning it consists of two oxygen atoms chemically bonded together. Therefore, to determine the number of atoms in oxygen gas, we consider the molecular formula. In one molecule of oxygen gas (O2), there are two oxygen atoms. Avogadro's number (6.022 x 10^23) represents the number of entities (atoms, molecules, etc.) in one mole of a substance. Therefore, in one mole of oxygen gas, there are 2 moles of oxygen atoms, equivalent to approximately 1.204 x 10^24 oxygen atoms.
There are 10 moles of oxygen in one mole of P4O10. This is because each molecule of P4O10 contains 4 phosphorus atoms and 10 oxygen atoms.
At STP, one mole of any gas occupies 22.4 liters. This is called molar volume. 113.97 liters ÷ (22.4 L/mol) = 5.09 moles Then convert moles to molecules (1 mole = 6.02 × 1023 molecules) 5.09 moles × (6.02 × 1023 molecules/mol) = 3.06 × 1024 molecules
The number of molecules in 0.24 moles of oxygen can be calculated using Avogadro's number, which states that there are 6.022 x 10^23 molecules in one mole of any substance. Therefore, there are approximately 1.45 x 10^23 molecules of oxygen in 0.24 moles.
To find the number of molecules of H2O2 in the vat, we first need to calculate the number of moles of oxygen atoms. Using the molar mass of oxygen (16 g/mol), we find that 455 grams of oxygen is equivalent to 28.44 moles. Since each molecule of H2O2 contains 2 oxygen atoms, the number of H2O2 molecules in the vat would be 2 times Avogadro's number (6.022 x 10^23) times the number of moles of oxygen atoms, or approximately 3.43 x 10^24 molecules.
The number of grams in a mole of a molecule is found by looking at the atomic mass of each element on the periodic table. The molar mass of an element is it's atomic mass in grams. The atomic mass of oxygen is 15.999. Since there are two atoms of oxygen in a molecule of oxygen, the molar mass of oxgen (O2) is 15.999 x 2. That comes out to 31.998g/mol, or you can round to 32 if significant figures arn't important to you.
Oxygen is a gas at 24 degrees Celsius.
The formula unit for calcium is a single atom. Therefore, the number of moles may be found by dividing the given number of atoms by Avogadro's number, or 1.999 moles.
3.00 moles x 6.02x10^23 molecules/mole = 1.81x10^24 molecules