Answer:
D) N2O5
Explanation:
The molar mass of a substance is defined as the mass of this substance in 1 mol. To solve this question we must find the molar mass of each option:
Molar mass NO:
1N = 14g/mol*1
1O = 16g/mol*1
14+16 = 30g/mol
Molar mass NO2:
1N = 14g/mol*1
2O = 16g/mol*2
14+32 = 46g/mol
Molar mass N2O:
2N = 14g/mol*2
1O = 16g/mol*1
28+16 = 44g/mol
Molar mass N2O5:
2N = 14g/mol*2
5O = 16g/mol*5
28+80 = 108g/mol
That means the compound with the greatest mass is:
D) N2O5
