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**I am concerned about adding the Vapor pressure of 430 psi to the equation. Should it be done??**

1. Homework Statement

1. Homework Statement

**Calculate the pressure produced by a 22-ft onion tank filled with a hydrocarbon fluid (0.72 sg). Vapor pressure is 430. Add 55 psi N2 to the total. What is the final pressure?**

2. Homework Equations

2. Homework Equations

Height x 0.433 x specific gravity (according to the text book) = pressure.

## The Attempt at a Solution

22 ft. x 0.433 x 0.72 = 6.85872 psi + 430 psi + 55 psi =

*491.85872 psi*