Answer:
0.36933g or 0.3693g in 2.6 x 10^-3 moles of Na2SO4
Explanation:
Molar mass
Na = 22.99
S = 32.07
O = 16
Na(2) + S + O(4) =
22.99(2) + 32.07 + 16(4) =
45.98 + 32.07 + 64 = 142.05g
Na2SO4 = 142.05g
2.6 x 10^-3 moles = 0.0026 moles
0.0026 x 142.05 = 0.36933