The standard atomic weight of platinum is 195,084 g.
195,084 g-------------------------------1 mol
250 g-------------------------------------x mol
x = 250/195,084 = 1,28 mol platinum
There are 10 hydrogen atoms present in 4C2H5OH.
48,177 134 32.1023 atoms
2
The chemical formula of propane is C3H8; 11 atoms are present in the molecule.
To find the number of moles of oxygen atoms in a 254 g sample of carbon dioxide (CO₂), first calculate the molar mass of CO₂, which is approximately 44 g/mol (12 g/mol for carbon and 32 g/mol for two oxygen atoms). The number of moles of CO₂ in the sample is 254 g ÷ 44 g/mol = about 5.77 moles. Since each molecule of CO₂ contains two oxygen atoms, the total number of moles of oxygen atoms is 5.77 moles × 2 = approximately 11.54 moles of O atoms.
There are 10 hydrogen atoms present in 4C2H5OH.
To determine the number of atoms in 97.6g of platinum, you first need to calculate the number of moles of platinum using its molar mass (195.08 g/mol). Then, you can use Avogadro's number (6.022 x 10^23 atoms/mol) to convert moles of platinum to atoms. This calculation will give you the total number of atoms in 97.6g of platinum.
48,177 134 32.1023 atoms
The element platinum has only one atom.
The number of atoms is indicated by coefficients.
There are 3 oxygen atoms present in sodium chlorate (NaClO3).
The total no. of atoms present in C12H22O11 is 45.
2
There are two chiral carbon atoms present in 2,3,4-trichloropentane.
The chemical formula of propane is C3H8; 11 atoms are present in the molecule.
Approx. 9.1024 atoms.
48,177 134 32.1023 atoms