http://en.wikipedia.org/wiki/Atomic_mass Conversion factor between Atomic Mass units and grams The standard scientific unit for dealing with atoms in macroscopic quantities is the mole (mol), which is defined arbitrarily as the amount of a substance with as many atoms or other units as there are in 12 grams of the carbon isotope C-12. The number of atoms in a mole is called Avogadro's number, the value of which is approximately 6.022 × 1023 mol-1. One mole of a substance always contains almost exactly the relative atomic mass or molar mass of that substance (which is the concept of molar mass), expressed in grams; however, this is almost never true for the atomic mass. For example, the standard atomic weight of iron is 55.847 g/mol, and therefore one mole of iron as commonly found on earth has a mass of 55.847 grams. The atomic mass of an 56Fe isotope is 55.935 u and one mole of 56Fe will in theory weigh 55.935g, but such amounts of pure 56Fe have never been found on Earth. The formulaic conversion between atomic mass and SI mass in grams for a single atom is: where u is the atomic mass unit and NA is Avogadro's number.
This is equivalent to 1,4 moles.
5,82 x 1023 atoms of tungsten equal 0,966 moles.
9,003 x 1023 atoms of iron correspond to 1,495 moles.
If it is 1.54 moles of Br atoms then the answer is 9.274 X 1023 atoms.If it is 1.54 moles of Br2 molecules then the answer is 1.855 X 1024 atoms.
To find the number of atoms of silver in 10.8g, you need to first calculate the number of moles of silver using its molar mass. Then, you can use Avogadro's number (6.022 x 10^23 atoms/mol) to convert the moles of silver to number of atoms.
This is equivalent to 1,4 moles.
5,82 x 1023 atoms of tungsten equal 0,966 moles.
9,003 x 1023 atoms of iron correspond to 1,495 moles.
Silver (Ag) has a molar mass of 107.87g/mol, so by dividing 20.5 by its molar mass, you get how many moles of silver atoms there are in that much silver.(20.5gAg)(1mol/107.87g) = 0.190 moles silver atomsNow, 1 mole = 6.02*1023 (Like a dozen = 12, a mole is just a value.) so if you can't answer in moles, just multiply 0.190 moles by 6.02*10230.190 mol*(6.02*1023/1mol)= 1.14*1023 silver atoms
2.50 moles silver (6.022 X 1023/1 mole Ag) = 1.51 X 1024 atoms of silver ==================
0,25 moles F2
56 moles × (6.02 × 1023) = 3.37 × 1024 atoms
Atomic Mass of Na: 23.0 grams1.50 moles × (6.02 × 1023 atoms) = 9.03 × 1023atoms
6.02 X 1023 particles per mole X .75 moles = 4.52 X 1023 molecules.
5.66 x 10^23 atoms of xenon is equal to 0.094 moles.
If it is 1.54 moles of Br atoms then the answer is 9.274 X 1023 atoms.If it is 1.54 moles of Br2 molecules then the answer is 1.855 X 1024 atoms.
To find the number of atoms of silver in 10.8g, you need to first calculate the number of moles of silver using its molar mass. Then, you can use Avogadro's number (6.022 x 10^23 atoms/mol) to convert the moles of silver to number of atoms.