The physical properties of a metal depend on how dense the metal is
Answer:
<h2>2.709 × 10²⁴ molecules</h2>
Explanation:
The number of molecules can be found by using the formula
N = n × L
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 we have
N = 4.5 × 6.02 × 10²³
We have the final answer as
<h3>2.709 × 10²⁴ molecules</h3>
Hope this helps you
The goal of the scientific process
Answer:
The reaction is not at equilibrium and reaction must run in forward direction.
Explanation:
At the given interval, concentration of NO = ![\frac{4.64\times 10^{-2}}{1}M=4.64\times 10^{-2}M](https://tex.z-dn.net/?f=%5Cfrac%7B4.64%5Ctimes%2010%5E%7B-2%7D%7D%7B1%7DM%3D4.64%5Ctimes%2010%5E%7B-2%7DM)
Concentration of
= ![\frac{4.56\times 10^{-2}}{1}M=4.56\times 10^{-2}M](https://tex.z-dn.net/?f=%5Cfrac%7B4.56%5Ctimes%2010%5E%7B-2%7D%7D%7B1%7DM%3D4.56%5Ctimes%2010%5E%7B-2%7DM)
Concentration of NOBr = ![\frac{0.102}{1}M=0.102M](https://tex.z-dn.net/?f=%5Cfrac%7B0.102%7D%7B1%7DM%3D0.102M)
Reaction quotient,
, for this reaction =
species inside third bracket represents concentrations at the given interval.
So, ![Q_{c}=\frac{(0.102)^{2}}{(4.64\times 10^{-2})^{2}\times (4.56\times 10^{-2})}=106](https://tex.z-dn.net/?f=Q_%7Bc%7D%3D%5Cfrac%7B%280.102%29%5E%7B2%7D%7D%7B%284.64%5Ctimes%2010%5E%7B-2%7D%29%5E%7B2%7D%5Ctimes%20%284.56%5Ctimes%2010%5E%7B-2%7D%29%7D%3D106)
So, the reaction is not at equilibrium.
As
therefore reaction must run in forward direction to increase
and make it equal to
.