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 . (Nearest integer).

Question

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  . (Nearest integer).

Canvas Classes · Accepted Answer

Step 1: Identify N,N-dimethylaminopentane

N,N-dimethylaminopentane =  =

Molecular formula: 
- C: 7
- H: 17
- N: 1
- Molar mass = 7(12) + 17(1) + 14 = 84 + 17 + 14 = 115 g/mol

Step 2: Calculate Moles of N,N-dimethylaminopentane

Mass of sample = 57.5 g

Step 3: Determine Moles of CuO Required

In Dumas' method, the reaction is:

For  (x=7, y=17, z=1):

Step 4: Calculate Total Moles of CuO

The answer is required as :

Answer: 1125

Key Points to Remember:
- CuO required per molecule:  m

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