Answer:
The electron domain and molecular geometry of NF₃ are option b
Explanation:
First of all, think the total valence electrons of each element.
N : 5
F: 7, but we have 3, so 7.3 = 21
Total: 26 e⁻
Now let's draw a scheme
F ---- N ---- F
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F
We have to put 26 e⁻ around the elements, so 6 e⁻ are been used for the bonds N-F, so now, there are 20 e⁻ to add. As the F, have used 1 e⁻ to form the bond, there are 6 more, around. Each fluorine which has 7 e⁻, shares 1e⁻ with the N, to complete the octet rule.
So, there are still 2e⁻ to add. They will be above the N and they are free. That's why the molecular geometric is trigonal, and the electronic geeometry is tetrahedral because the non-binding electron pair of N
Answer:
Mass of carbon tetrachloride 135.15 g.
Explanation:
Given data:
Volume of carbon tetrachloride = 85.0 mL or 85.0 cm³
Density of carbon tetrachloride = 1.59 g/cm³
Mass of carbon tetrachloride = ?
Solution:
Formula:
D=m/v
D= density
m=mass
V=volume
Now we will put the values in formula:
1.59 g/cm³ = m / 85.0 cm³
m = 1.59 g/cm³ ×85.0 cm³
m = 135.15 g
Answer:
Explanation:
Hello there!
In this case, according to the given chemical reaction, it is possible to evidence the 4:3 mole ratio between oxygen and iron (II) chloride; thus, we can compute the moles of the latter that are consumed by the given molecules of the former:
Now, since we have a 0.945-M solution of this iron (II) chloride, the corresponding volume turns out to be:
Best regards!
Answer:
725 mmHg
Explanation:
mmHg is a sort of unit to determine pressure.
g/L, is a unit for density
2.5L is a value for volume
315K is a value for Asbolute T° (Kelvin grade)
Answer:
He is most well known for discovering the role Oxygen plays in combustion
Explanation:
