Advertisements
Advertisements
Question
If phosphorus is considered to contain P4 molecules, then calculate the number of moles in 100g of phosphorus?
Advertisements
Solution
Molecular weight of P4 = 31 × 4 = 124 g
124 g = 1 mole
∴ 100 g = `100/124`
= 0.806 moles
Number atoms in P4 = 4
∴ Number of atoms in 0.806 moles = 4 × 0.806
= 3.224 atoms
APPEARS IN
RELATED QUESTIONS
Convert into mole.
12 g of oxygen gas
Convert into mole.
20 g of water
What name is given to the amount of substance containing 6.022 × 1023 particles(atoms,molecules or ions) of a substance ?
Explain the term:
Gram atom
A sample of ammonium nitrate when heated yields 8.96 litres of steam (measured at STP)
NH4NO3 → N2O + 2H2O
What volume of dinitrogen oxide is produced at the same time as 8.96 L of steam?
Define the term:
Relative molecular mass
Define the term:
Mole
Find the number of molecules in 1.8 g of H2O.
Find the number of moles in 10 g of CaCO3.
Calculate the number of oxygen atoms in 0.10 mole of Na2CO3 . 10H2O.
