An instrument uses potassium bromide as one of the compounds in the analysis of noble gases of a planet.  Potassium bromide has a specific gravity of 2.38 and a molecular weight of 119 grams per mole [gmol]. Assume the spacecraft has a liquid sample of potassium bromide onboard that fills a 1.35-gallon [gal] container.  What is the amount of the potassium bromide sample in the container, in units of moles [mol]?

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