UPDA Chemical

UPDA/MMUP Engineer Registration Exam — Chemical (Qatar)

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A steady-state process involves mixing two streams of a 20 wt% NaOH solution with a 50 wt% NaOH solution. If 100 kg/hr of the 20 wt% solution is mixed with 50 kg/hr of the 50 wt% solution, what is the weight percent of NaOH in the final mixed stream?

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