Now let's suppose it's your turn to be the professor. You want to write a question for your students using theoretical data. Suppose you want their "unknown liquid" to be toluene (molar mass = 92.1 g/mol). Using the data in the table below, what should the "mass of flask + unknown condensed liquid" be so that they can correctly identify toluene as their unknown? Mass of flask: 77.485 g Mass of flask + unknown condensed liquid: ????? Temperature of water bath: 100 °C Pressure of gas in our system: 0.997 atm Volume of gas in our system: 255 mL Group of answer choices: A) 78.250 B) 0.765 C) 1.04 g D) 78.525 g

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Q: You have a 0.871 M solution of magnesium chloride. You pour out 336.5 mL of this solution. How many…

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Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".