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How many moles are in 0.476 grams of bromine?
To find the number of moles in 0.476 grams of bromine, you first need to determine the molar mass of bromine, which is approximately 79.904 g/mol. Then, you can use the formula: moles = mass (g) / molar mass (g/mol). Therefore, in this case, 0.476 grams of bromine is equivalent to 0.006 moles.
How many oxygen atoms are present in 40.0 grams of oxygen gas?
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
How many grams are therein 2.31024 atoms of silver?
First from atoms to mole (Avogadro's number)2.3*10+24 (atoms) / 6.022*10+23 (atoms/mole) = 3.82 mole Agand from mole to gram (via molar mass)3.82 mole * 107.9 g/mole = 412 g Ag
What mineral is found in coal graphite and diamonds?
Carbon is the mineral found in coal, graphite, and diamonds. The different arrangements of carbon atoms lead to the diverse properties of these materials.
How many tornadoes have hit Fayetteville ar?
Fayetteville, Arkansas has experienced numerous tornadoes over the years. However, I recommend checking a local weather database or the National Weather Service for the most up-to-date and specific information on the exact number of tornadoes that have hit Fayetteville.
How many moles of argon gas contain 7.52 x 1022 Ar atoms?
To find the number of moles of argon gas, you can use Avogadro's number, which is approximately (6.022 \times 10^{23}) atoms/mole. Divide the number of argon atoms by Avogadro's number: [ \text{moles of Ar} = \frac{7.52 \times 10^{22} \text{ atoms}}{6.022 \times 10^{23} \text{ atoms/mole}} \approx 0.125 \text{ moles} ] Thus, there are approximately 0.125 moles of argon gas.
How many atoms are in 45 grams of pb?
First of all we convert the mass of leadto moles. Using the equation moles = mass(g) / Ar (Realtive atomic Mass)_. Mass( g) = 45 g Ar =~ 207 (Periodic Table). Hence moles(Pb) = 45 x 207 Moles (Pb) = 9315 moles. Next using the Avogadro number. 1 moles(of A SUBSTANCE) contains 6.022 x 10^(23) atoms. Hence number of atoms in 9315 moles = 9315 x 6.022 x 10^(23) = 5.61 x 10^(27) atoms. As a 'silly' number. 5,610,000,000,000,000,000,000,000,000 atoms.
What is the mass in grams of 3.2 moles of argon?
From the Periodic Table, Argon has an atomic weight of 39.948. One mole of any element is equal to its atomic weight in grams. So 1 mole of Ar = 39.948g of Ar. Using that equality, you do the following calculation to find the number of moles of Ar in 22g of Ar: 22g Ar X 1mol Ar/39.948g Ar = 0.55mol Ar
How many atoms are there in Ar?
one
How many atoms ar ein 133g of calcium?
To calculate the number of atoms in 133g of calcium, we first need to determine the number of moles of calcium present. The molar mass of calcium is 40.08 g/mol. By dividing 133g by the molar mass of calcium, we find the number of moles. Finally, we can use Avogadro's number (6.022 x 10^23 atoms/mol) to convert moles to atoms, giving us the total number of atoms in 133g of calcium.
How many atoms are in 0.5 mole of Ar?
6.226 x 10^28 atoms of Nitrogen approximately mole = 6.226 X 10^28 objects Nitrogen exists as a diatomic molecule, so in 0.5 moles of diatomic nitrogen gas there are exactly 1 moles worth of molecules, therefore the number of atoms in 0.5 moles of nitrogen gas is equal to the value of the mole which is approximately 6.226 x 10 ^ 28 atoms
How many grams do 3.61020 atoms of silicon weigh?
Each mole of particles have 6.02 x 10^23 particles. (3.6 x 10^20) / (6.02 x 10^23) = 0.000598 mol of Silicon Ar of Si (Silicon) = 28.1g/mol mass = number of moles x Ar mass = 0.000598 mol x 28.1g/mol = 0.0168g of silicon
How many argon atoms are there in 1.5 102 g of argon?
2.3 × 1024 atoms of Ar
How many moles are in a sample containing 2.71 x 10^24 atoms of iron?
two or three
How many moles are in 11.8g Ar?
The answer is 0,0719 mol.
How much mass is in 1 mole of sulfur atoms?
Remember the Equation Moles = mass(g) / Ar (Relative Atomic Mass) Algebraically rearranging mass(g) = moles X Ar We have 1 mole and from the Periodic Table the Atomic Mass of Sulphur is '32'. Hence substituting mass(g) = 1 moles X 32 mass = 32 g .
What is the mass in grams of 1.50 x 10 23 atoms Mg?
1 mole of any substance contains 6.022 x 10^(23) atoms/molecules. We have 1.5 x 10^(23) atoms Hence moles = 1.5 x 10^(23) / 6.022 x 10^(23) = 0.24908... moles(Mg) Also remember the eq'n moles = mass(g) / Ar Algebraically rearrange mass(g) = moles X Ar mass = 0.24908... X 24.3 (Ar of Mg ; from Periodic Table) Mass = 6.0528... g ~ 6 g
