The Great French Chemist Antoine Lavoisier Discovered The Law Of Conservation Of Mass In Part By Doing A Famous Experime 1 (107.1 KiB) Viewed 11 times
The great French chemist Antoine Lavoisier discovered the Law of Conservation of Mass in part by doing a famous experiment in 1775. In this experiment Lavoisier found that mercury(II) oxide, when heated, decomposed into liquid mercury and an invisible and previously unknown substance: oxygen gas. 1. Write a balanced chemical equation, including physical state symbols, for the decomposition of solid mercury(II) oxide (HgO) into liquid mercury and gaseous dioxygen. 2. Suppose 86.0 mL of dioxygen gas are produced by this reaction, at a temperature of 60.0 °C and pressure of exactly 1 atm. Calculate the mass of mercury(II) oxide that must have reacted. Be sure your answer has the correct number of significant digits. g ロ→ロ 010 X x10 Ś ?
A 10.00 L tank at 3.6 °C is filled with 12.5 g of boron trifluoride gas and 4.34 g of sulfur tetrafluoride gas. You can assume both gases behave as ideal gases under these conditions. Calculate the mole fraction of each gas. Be sure each of your answer entries has the correct number of significant digits. gas boron trifluoride sulfur tetrafluoride mole fraction 0 X Ś ?
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