Solution-1 containing 30% acetic acid and 20% nitrogen at the rate F combines with Solution-2 containing 20% acetic acid and 10% nitrogen at the rate D and Solution-3 containing 10% acetic acid and 30% nitrogen at the rate N the product formed contains 20% acetic acid at the rate P, what is the percentage of nitrogen in product?

Here are some steps for solving material balance problems: Draw a diagram: Sketch a simple diagram of the process. Write chemical equations: If applicable, write the chemical equations involved. Select a basis: Choose a basis for calculation. Make a material balance: Generate material balance equations by making the overall material balance and individual material balances of components involved. Then, solve them simultaneously. Label the process flow chart: Draw and label the process flow chart (block diagram). When labeling, write the values of known streams and assign symbols to... Show more

Here are some steps for solving material balance problems:
Draw a diagram: Sketch a simple diagram of the process.
Write chemical equations: If applicable, write the chemical equations involved.
Select a basis: Choose a basis for calculation.
Make a material balance: Generate material balance equations by making the overall material balance and individual material balances of components involved. Then, solve them simultaneously.
Label the process flow chart: Draw and label the process flow chart (block diagram). When labeling, write the values of known streams and assign symbols to unknown stream variables.
Use a table: Keep track of information using a table.
Use matrix algebra: Matrix algebra, also known as linear algebra, is well suited to solving material balance problems. 
Material balance problems can be solved by listing and solving a series of equations, or by use of a table where information is kept track of. 
 

Related Test: Chemical Engineering Practice Test: Material Balances

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