The number of moles of CuO , that will be utilized in Dumas method for estimating nitrogen in a sample of 57 . 5 g of N , N - dimethylaminopentane is ________ × 10 - 2 . (Nearest integer)

Step-by-step solution

Moles of N N in N ,   N -dimethylaminopentane = 57 . 5 115 = 0 . 5 mol C 7 H 17   N + 45 2 CuO ⟶ 7 CO 2 + 17 2 H 2 O + 1 2   N 2 + 45 2 Cu  no. molesof CuO reacted  45 / 2 =  no. molesof  C 7 H 17   N  reacted  1 ∴ no. of moles of CuO reacted = 45 2 × 0 . 5 = 11 . 25 = 1125 × 10 - 2