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3 years ago

How many electrons would be found in the ion whose symbol is given below ? N3-

Chemistry

1 answer:

Anna [14]3 years ago

6 0

Answer:

N³⁻ contain seven protons and ten electrons.

Explanation:

Nitrogen have seven protons and seven electrons. When it an atom lose or gain the electrons ions are formed.

Cation:

When an atom lose the electrons the formed is called cation.

e.g Na⁺ sodium lose one electron and form cation.

Anion:

when an atom gain the electrons the ions formed is called anion.

e.g N³⁻

Nitrogen consist of seven electrons and seven protons. when it gain electrons anions are formed. In given symbol nitrogen consist of 3- charge which means nitrogen gain three more electrons so total electrons will be ten.

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With respect to the categories of assets, liabilities, and stockholders' equity presented on the balance sheet (statement of fin

Pavlova-9 [17]

Explanation:

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3 years ago

The empirical formula of a compound is CH2O and its molecular weight is 90.09 g/mol. Determine the molecular formula.

Pachacha [2.7K]

Answer : The molecular formula of the compound will be, $C_{3}H_{6}O_3$

Explanation :

Empirical formula : It is the simplest form of the chemical formula which depicts the whole number of atoms of each element present in the compound.

Molecular formula : it is the chemical formula which depicts the actual number of atoms of each element present in the compound.

For determining the molecular formula, we need to determine the valency which is multiplied by each element to get the molecular formula.

The equation used to calculate the valency is :

$n=\frac{\text{molecular mass}}{\text{empirical mass}}$

As we are given that the empirical formula of a compound is $CH_2O$ and the molar mass of compound is, 90.09 gram/mol.

The empirical mass of $CH_2O$ = 1(12) + 2(1) + 1(16) = 30 g/eq

$n=\frac{\text{molecular mass}}{\text{empirical mass}}$

$n=\frac{90.09}{30}=3$

Molecular formula = $(CH_2O)_n=(CH_2O)_3=C_{3}H_{6}O_3$

Thus, the molecular formula of the compound will be, $C_{3}H_{6}O_3$

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4 years ago

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natka813 [3]

Answer:

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Explanation:

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3 years ago

Read 2 more answers

Compare and contrast the functions of each of the following types of flasks: filter, Erlenmeyer, volumetric.

harkovskaia [24]

The Erlenmeyer Flask was introduced in 1861 by German chemist Emil Erlenmeyer and is shaped like a cone. This has a triangular shape and mouth wide for it to be easier to pour and store liquids. The Volumetric flask is used for preparing liquids with volumes of high precision. It has a pear-shaped body and a long neck with a circumferential fill line. The Filter Flask is also known as the A Büchner flask. It is like the Erlenmeyer but this one is thick-walled and has a special arm in the side. It is used for filtering liquid.

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3 years ago

Urgent‼️‼️‼️‼️‼️‼️ Find the average atomic mass of element Uus. 284Uus 283.4 amu 34.60 % 284.7 amu 21.20 % Uus 287.8 amu 44.20 %

Citrus2011 [14]

Answer:

285.6

Explanation:

(283.4×0.3460)+(284.7×0.2120)+(287.8×0.4420)

=285.6204

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3 years ago