Answer:
The answer is
<h2>4.5 × 10²²</h2>
Explanation:
To find the number of atoms of titanium , given it's number of moles we use the formula
<h3>N = n × L</h3>
where n is the number of moles
N is the number of entities
L is the Avogadro's constant which is
6.02 × 10²³ entities
From the question
n = 0.075 mol
We have
N = 0.075 × 6.02 × 10²³
We have the final answer as
<h3>4.5 × 10²²</h3>
Hope this helps you
The two factors that are mainly responsible for determining the thermal energy of a substance are Temperature and Mass.
<h3><u>Explanation:
</u></h3>
Thermal energy is the total energy of the substance.
Temperature: The temperature and thermal energy of a substance are directly related to each other(direct proportion) which means that the greater the temperature, the greater will be the thermal energy of that particular substance.
Mass: Consider a situation, if we have two or more substances that have the same temperature the substance with the highest mass will have the most thermal energy than the others.
Explanation:
Below is an attachment containing the solution to the question.
Answer: E
Explanation:
The lattice energy is the energy change when one mole of a crystal is formed from its components ions in its gaseous sate
Therefore lattice energy = heat of Sublimation+ ionization energy +electron affinity-(heat of formation)
Therefore lattice Energy = 109 +495 -328 +570.
Lattice energy = --923kjmol-1
Order each of the following sets of five atoms and ions according to decreasing size. "1" largest and "5" smallest.
<span>O </span>
<span>S^2- </span>
<span>O^2- </span>
<span>Te^2- </span>
<span>Se^2- </span>
<span>I know the more negative the ion, the larger the element. but i dont understand how to do it when they all have the same charge, and an element with no charge. </span>
