How many molecules are found in 295.3 grams of N4Cl2

Question

need this in less than 10 minutes please

Answer 1

1. the atomic weight of N₄Cl₂ is 126 awu. So, 1 Mole has 126g

 

2. 295.3g ÷ 126g/Mole = 2.34Moles

 

3. 2.34 Moles x Avogadro's number gives the number of molecules

2.34 Moles x 6.023x10²³ = 14.1x10²³ = 1.41x10²⁴ molecules