How many moles of oxygen are needed to completely react with 9.5 grams of sodium

0.103 moles of oxygen

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:

According to stoichiometry:

4 moles of combine completely with 1 mole of to give 2 moles of

Thus 0.413 moles of will combine completely with= moles of

Thus 0.103 moles of oxygen are needed to completely react with 9.5 grams of sodium

c. 75.7

i think that is the right

6.4 cm (max) - 25 cm (min)