Answer: m = 0.85 g N2H6
Explanation: To find the mass of N2H6 we need to convert molecules of N2H6 to moles and convert it to mass using the molar mass of N2H6.
1.50x10²² molecules N2H6 x 1 mole N2H6 / 6.022x10²³ molecules N2H6
= 0.025 mole N2H6 convert to mass.
0.025 mole N2H6 x 34 g N2H6 / 1 mole N2H6
= 0.85 g N2H6
