Question

calculate the mass of 12.044*10^23 molecules of oxygen

Answer 1

Explanation: 1 molecule of oxygen has a mass of 32g and it contains 6.023*10^23 molecules

Therefore, 32g————>6.023*10^23

X——————>12.044*10^23

X= 12.044*10^23 * 32/ 6.023 * 10^23

X= 2*32 => X= 64g

Therefore the mass of 12.044*10^23 molecules of O2 is 64 grams