Answer:
A2X<span>, δHvap= 39.6 kj/mol is the correct answer.
Explanation:
Heat of Vaporization is defined as the minimum amount of energy required to convert a liquid substance into a gas.
In liquids the intermolecular forces are stronger as compared to gases. In order to break these intermolecular forces a heat is supplied. Now, depending upon the nature of these interactions the amount of heat required varies.
Stronger the intermolecular forces greater will be the energy required to break them. Hence in above statement the greatest energy is associated with compound A2X (39.6 kJ/mol) as compared to others, therefore it will be having strongest intermolecular forces as compared to other given compounds.</span>
Molar mass of Al = 26.98
molar mass of Al2O3 = 101.96
36 / 26.98 = 1.3343 moles Al
set up a proportion : 1.3343 / 4 = x / 2 (let x = moles of Al2O3)
x = 0.66716 moles of Al2O3
0.66716 * 101.96 = 69.024 g of Al2O3
Answer:
A typical atom consists of three subatomic particles: protons, neutrons, and electrons (as seen in the helium atom below). Other particles exist as well, such as alpha and beta particles (which are discussed below). The Bohr model shows the three basic subatomic particles in a simple manner. Most of an atom's mass is in the nucleus—a small, dense area at the center of every atom, composed of nucleons. Nucleons include protons and neutrons. All the positive charge of an atom is contained in the nucleus, and originates from the protons. Neutrons are neutrally-charged. Electrons, which are negatively-charged, are located outside of the nucleus.
Explanation:
Answer:
58.8%
Explanation:
n= Experimental/Theoretical ·100
n= 5.50/(your answer to part A) 9.36·100 = 58.8%
