To solve for moles you need either a) particle (atoms, compounds etc.) or b)Mass (grams). From this you can then determine the number moles (mol).
To convert particles to number of moles you must DIVIDE the particle by Avogadro's Number (6.0221415 X 1023). If asked for number atoms, and you are only given the number of compounds, you must then multiply this answer by the number of atoms in the compound.
To convert mass (grams) to number of moles, you must DIVIDE the mass by the molar mass (g/mol) of the substance, that is the atomic mass of each atom [e.g H2O has a molar mass of 2 X 1.00794 g/mol (Atomic Mass of hydrogen X2 as there are 2 H atoms) + 15.9994 g/mol = 18.01528]. Divide the mass (g) of the substance by the molar mass of the substance.
Ex/ Determine the number of moles of a 15.0g sample of H2o?
n= 15.0g/18.01528g/mol
n= 0.833 mol
Ex2/ Determine the number of moles of 7.445 x 105 molecules of H2O.
n=6.0221415 x 1024 molecules/ 6.0221415 x 1023 molecules/mol
n=1.00 x 102 mol
CH is not a molecule.
CH is not a molecule.
The mass of 3 mol of ammonia is 51,093 g; the number of ammonia molecules in 3 moles is18,066422571.10e23.
To find the number of molecules present in 936 g of glucose, you would first calculate the number of moles of glucose using its molecular weight. Then, you would use Avogadro's number (6.022 x 10^23 molecules/mol) to convert moles to molecules.
To determine the number of molecules in 45 g of silver, you first need to calculate the number of moles of silver using its molar mass (107.87 g/mol). Then, you can use Avogadro's number (6.022 x 10^23) to convert moles to molecules.
2 moles.
CH is not a molecule.
CH is not a molecule.
The answer is 6,022140857.1023 x 8 = 48,177126856.1023 molecules.
You can calculate the number of molecules in a mole using Avogadro's number, which is 6.022 x 10^23. Simply multiply the number of moles by Avogadro's number to get the number of molecules. This calculation allows you to convert between moles and molecules.
The mass of 3 mol of ammonia is 51,093 g; the number of ammonia molecules in 3 moles is18,066422571.10e23.
To calculate the number of moles in 1,000,000,000 molecules of H2O2, divide the number of molecules by Avogadro's number (6.022 x 10^23 molecules/mol). So, 1,000,000,000 molecules / 6.022 x 10^23 molecules/mol ≈ 1.66 x 10^-14 moles of H2O2.
To find the number of molecules produced, first calculate the number of moles of H2 using its molar mass. Then, use the balanced chemical equation to relate the number of moles of H2 to NH3. Finally, convert the moles of NH3 to molecules using Avogadro's number, which is 6.022 x 10^23 molecules/mol.
To find the number of molecules, first calculate the amount of O2 in moles using the ideal gas law. Then use Avogadro's number (6.022 x 10^23 molecules/mol) to convert moles to molecules.
To calculate the number of molecules in 15 grams of ethane (C2H6), first find the molar mass of C2H6, which is 30.07 g/mol. Next, calculate the number of moles in 15 grams using the formula: moles = mass / molar mass. Finally, use Avogadro's number (6.022 x 10^23 molecules/mol) to convert moles to molecules.
If you meant 1.5*10^23 and not 1.51023 molecules, see below:1.5*10^23 molecules / (6.022*10^23 molecules/mol)= 1.5/6.022 mol=.25 moles, rounded to two significant figures.
To find the number of moles in 8.23 x 10^24 molecules of calcium carbonate, you first need to determine the molar amount of molecules in one mole of calcium carbonate by using Avogadro's number. Then, divide the given number of molecules by the molar amount to calculate the number of moles.