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Stels [109]
3 years ago
12

Lewis dot structure for N3-

Chemistry
2 answers:
d1i1m1o1n [39]3 years ago
5 0

Answer:

See figure 1

Explanation:

For the <u>azide ion</u> N_3^-^1 we will  5 electrons for each nitrogen and 1 electron for the negative charge, so:

5~electrons*~3~N=~15~e^-\\\\15~e^-~+~1e^-~=~16e^-

We have to organize the 16 electrons. For example in figure 1 we will have the 3 nitrogens in line, if we check the <u>formal charge</u> for each atom we will get:

FC=~valence~electrons~-(lone~pairs~e^-+\frac{1}{2}~bound~electrons)

For figure 1 we will have:

A:~FC=~5~-(4+\frac{1}{2}4)=~-1

B:~FC=~5~-(0+\frac{1}{2}8)=~+1

C:~FC=~5~-(4+\frac{1}{2}4)=~-1

In total we will have a charge of => -1+1-1= <u>-1</u>

labwork [276]3 years ago
4 0

Answer :

The steps involved in the electron dot structure of N^{3-} are :

First we have to determine the total number of valence electron in N^{3-}.

Number of valence electrons in N = 5

The charge on N is (-3). So, we add 3 electrons.

Total number of valence electrons = 5 + 3 = 8 electrons

The image is shown below.

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if a lead can be extrated with 92.5% efficiency,what is the mass of ore required to make a lead sphere with 750%cm radius
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The mass of ore required is 21 700 t.

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V = \frac{4}{3}  \pi  r^{3} = \frac{4}{3}  \pi  (750 cm)^{3} = 1.767 × 10⁹ cm³

The density of lead is 11.34 g/cm³.

So mass of lead sphere = 1.767 × 10⁹ cm³ × \frac{11.34 g}{1 cm^{3} } = 2.004 ×10¹⁰ g

2.004 ×10¹⁰ g × \frac{1 kg}{1000 g} = 2.004 × 10⁷ kg

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How many grams of Al(OH)3 are produced from 3.00 g of AlCl3 with excess of NaOH?
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Answer:

1.772 gram is the approximate answer

Explanation:

molecular mass of AlCl3 is 132 g per mole and of Al(OH)3 is 78 g per mole

the reaction is

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from the reaction it is clear that 1 mole AlCl3 makes 1 mole Al(OH)3

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