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Atomic Theory

Q. Sulfur and fluorine form several different compounds including sulfur hexafluoride and sulfur tetrafluoride. Decomposition of a sample of sulfur hexafluoride produced 4.43 g of fluorine and 1.26 g of sulfur, while decomposition o a sample of sulfur tetrafluoride produced 4.43 g of fluorine and 1.89 g of sulfur. Calculate the mass of fluorine per gram of sulfur for the sample of sulfur tetrafluoride.

Solved • Jan 29, 2020

Atomic Theory

Q. Sulfur and fluorine form several different compounds including sulfur hexafluoride and sulfur tetrafluoride. Decomposition of a sample of sulfur hexafluoride produced 4.43 g of fluorine and 1.26 g of sulfur, while decomposition o a sample of sulfur tetrafluoride produced 4.43 g of fluorine and 1.89 g of sulfur. Calculate the mass of fluorine per gram of sulfur for the sample of sulfur hexafluoride.

Solved • Jan 29, 2020

Atomic Theory

Q. According to band theory, the reason that an insulator does not conduct an electric current well is that _____.

Solved • Jan 27, 2020

Atomic Theory

Q. When a sample of 10.0 g of X is decomposed into its constituent elements (A and D), 4.0 g of A and 6.0 g of D are produced. Which of the following laws allows us to predict how much A and D would be produced from an 88.7 -g sample of X? a) Law of multiple proportions b) Law of definite proportions c) Law of conservation of energy d) LAw of conservation of mass

Solved • Jan 27, 2020

Atomic Theory

Q. A hydrogen-filled balloon was ignited and 1.30 g of hydrogen reacted with 10.4 g of oxygen. How many grams of water vapor were formed? (Assume that water vapor is the only product.)

Solved • Jan 27, 2020

Atomic Theory

Q. The law of conservation of mass states that mass is neither created nor destroyed during a chemical reaction. This can be gleaned from the third postulate in Dalton's series. Magnesium oxide decomposes into magnesium and oxygen. If 8.06 g of magnesium to form 4.86 g of magnesium, what mass of oxygen gas is also released in the reaction? Express your answer with the appropriate units.

Solved • Jan 27, 2020

Atomic Theory

Q. Which of the following reactions is possible according to Dalton's atomic theory? a) N2 → O2 b) N2 + O2 → 2NO c) CO2 → NO2 d) H2O → H2S

Solved • Jan 27, 2020