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4 years ago

An ion has a charge of 2- and 18 electrons.

Chemistry

1 answer:

dmitriy555 [2]4 years ago

6 0

Answer:

The answer to your question is:

Explanation:

Data

Ion charge of 2- and 18 electrons

Process

a) From which atom does this ion form?

If an Ion has a negative charge, it means that it has more electrons than the neutral atom. So, it the ion has 18 electrons, it means the neutral atom has 16 electrons.

In the periodic table we find that the atom with 16 electrons is Sulfur.

B) How do you know?

I have explained it.

An ion with a negative charge means that it gained the number of negative charges compare with the neutral atom.

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3 years ago

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3 years ago

Let us write the appropriate equilibria and associate the correction <img src="https://tex.z-dn.net/?f=K_b" id="TexFormula1" tit

rosijanka [135]

Explanation:

The relation between $K_a\&K_b$ is given by :

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Where :

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3 0

3 years ago

Mass

DiKsa [7]

The molecular formula =C₆H₁₂O₆

<h3>Further explanation</h3>

Given

6.00 g of a certain compound X

The molecular molar mass of 180. g/mol

CO₂=8.8 g

H₂O=3.6 g

Required

The molecular formula

Solution

mass C in CO₂ :

= 1.12/44 x 8.8

= 2.4 g

mass H in H₂O :

= 2.1/18 x 3.6

= 0.4 g

Mass O in compound :

= 6-(2.4+0.4)

= 3.2 g

Mol ratio C : H : O

= 2.4/12 : 0.4/1 : 3.2/16

= 0.2 : 0.4 : 0.2

= 1 : 2 : 1

The empirical formula : CH₂O

(CH₂O)n=180 g/mol

(12+2+16)n=180

(30)n=180

n=6

(CH₂O)₆=C₆H₁₂O₆

7 0

3 years ago