Answer:
volume of O2 = 3000cm³
Explanation:
no. of moles= mass of oxygen (g)/molar mass of oxygen(g/mol)
= 4/32
=0.125
volume of oxygen= no. of moles × 24000 cm³ (or 24dm³)
= 0.125 × 24000 cm³
=3000cm³ (or 3dm³)
Astamañana vaya buenas noches
a) the atomic number is 15
b) the mass number is 15+16 = 31
c) element is phosphorus
d)Group 15 period 3
0.0156
