Like hydrogen fluoride (HF), water (H2O) is a polar covalent molecule.
The electron pair in a non-polar covalent bond is shared equally by the two bonded atoms, but in a polar covalent bond, the electron pair is shared unequally by the two bonded atoms. Differences in electronegativity are what lead to polar bonding.
The entire transfer of valence electron(s) between atoms is referred to as an ionic bond. It is a kind of chemical connection that produces two ions with opposing charges. In ionic bonding, the nonmetal takes the lost electrons to form a negatively charged anion while the metal loses them to become a positively charged cation.
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Answer:
![[PCl_3]=[Cl_2]=0.068M](https://tex.z-dn.net/?f=%5BPCl_3%5D%3D%5BCl_2%5D%3D0.068M)
![[PCl_5]=0.385M](https://tex.z-dn.net/?f=%5BPCl_5%5D%3D0.385M)
Explanation:
Hello!
In this case, since the equilibrium expression for the considered equation is:
![Kc=\frac{[PCl_5]}{[Cl_2][PCl_3]}](https://tex.z-dn.net/?f=Kc%3D%5Cfrac%7B%5BPCl_5%5D%7D%7B%5BCl_2%5D%5BPCl_3%5D%7D)
Which can be written in terms of the reaction extent and the ICE chart and the initial concentrations of 0.453 M as shown below:
We can solve for x as follows:
In such a way, we obtain the following concentrations at equilibrium:
![[PCl_3]=[Cl_2]=0.453M-0.385M=0.068M](https://tex.z-dn.net/?f=%5BPCl_3%5D%3D%5BCl_2%5D%3D0.453M-0.385M%3D0.068M)
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Answer:
The equation for Kinetic Energy is: KE = 1/2 mv2. Kinetic energy has a direct relationship with mass, meaning that as mass increases so does the Kinetic Energy of an object. The same is true of velocity. However, mass and velocity are indirectly related.
Answer:
179.87 g/mol
Explanation:
First you need to determine the number of each elements in the molecule. This information comes from the molecular formula.
Ze(NO3)2 tells us that there is 1 Ze atom and 2 NO3 anions per molecule. each NO3 anion will have 1 nitrogen and 3 oxygens. Due to that, one molecule of Ze(NO3)2 will have 1 atom of Ze, 2 atoms of nitrogen (N), and 6 atoms of oxygen (O).
Next you need to add all of the individual atom's molar masses to get the over all molar masses. The molar masses of each element is in the question but it can also be found on the periodic table.
molar mass of Ze(NO3)2 = 55.85g/mol + (14.01g/mol*2) + (16.00g/mol*6)
molar mass of Ze(NO3)2 = 179.87 g/mol
I hope this helps.
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