Answer: 3.68 x 10^21 particles
Explanation:
Based on Avogadro's law:
1 mole of any substance has 6.02 x 10^23 atoms
Since 1 mole is the same as molar mass of a substance
237 g = 6.02 x 10^23 atoms
1.45g = Z atoms
To get the value of Z, cross multiply:
(Z atoms x 237g) = (6.02 x 10^23 atoms x 1.45g)
237Z = 8.729 x 10^23
Z = (8.729 x 10^23 / 237)
Z = 3.68 x 10^21
Thus, there are 3.68 x 10^21 representative particles in 1.45 g of the molecular compound.
Explanation:
the empirical formula is correct but I didn't got the question properly
Avogadro’s number is 6.02 x 10^ 23 atoms (or molecules) per
mole. Through units cancellation:
Number of atoms = (4.56 mol)( 6.02 x 10^23 molecules/ mol) =
2.74 x 10^ 24 molecules
Since the C:H ratio is 1:4, 1 molecule of CH4 will have 4
atoms of hydrogen,
Therefore number of H
= 4 (2.74 x 10^24 molecules) = 1.098 x 10^ 25 atoms
Answer:
P₄O₆
Explanation:
The molecular formula is a whole number multiple of the empirical formula. that is, if the mole wt is 219.9 gms/mole and the empirical formula weight is 110 gms/mole*, then the whole number multiple is 219.9/110 = 2 => Molecular formula => (P₂O₄)₂ => P₄O₆.
