Answer: 0.011 moles
Step-by-step explanation:
According to avogadro's law, 1 mole of every substance occupies 22.4 Liters at STP and contains avogadro's number
of particles.
To calculate the moles, we use the equation:
given mass = 0.71 g
Molar mass= 63.5 g
The number of moles is 0.011 moles.