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dlinn [17]
3 years ago
6

How many molecules of carbon monoxide gas can be produced from 395 grams of oxygen gas ?

Chemistry
1 answer:
puteri [66]3 years ago
3 0

The answer for the following problem is mentioned below.

  • <u><em>Therefore 148.125 × 10^-23 molecules of the cabon monoxide gas is produced.</em></u>

Explanation:

Given:

mass of the oxygen gas = 395 grams

We know;

For the production of the carbon monoxide;

The equation is,

Before balancing the equation;

C + O_{2} → CO

After balancing the equation;

2 C +O_{2} → 2 CO

where,

C = carbon molecule

O = oxygen molecule

CO = carbon monoxide

For the equation,

  32 grams of oxygen gas   →  2 × 6.023 × 10^-23 molecules

        395 grams of oxygen gas   →    ?

     

      = \frac{2*6.023*10^{-23}* 395}{32}

   = 148.125 × 10^-23 molecules of the carbon monoxide

<u><em>Therefore 148.125 × 10^-23 molecules of the cabon monoxide gas is produced.</em></u>

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Answer:

The number of lines possible for SO2 is 3

Explanation:

The following Procedure should be followed when calculating the number of vibrational modes:-

  1. Identify if the given molecule is either linear or non-linear
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  3. Place the value of n in the formula and solve.

SO2 is a non-linear molecule because it contains a lone pair which causes the molecule to bent in shape hence, The mathematical formula for calculating the number of non-linear molecule in a infrared region is (3n - 6) here n is the number of atoms in molecule.

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Write the isotopic symbol for the following (show your work) a) An isotope of iodine whose atoms have 78 neutrons b) An isotope
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<u>Answer:</u>

<u>For a:</u> The isotopic representation of iodine is _{53}^{131}\textrm{I}

<u>For b:</u> The isotopic representation of cesium is _{55}^{137}\textrm{Cs}

<u>For c:</u> The isotopic representation of strontium is _{38}^{52}\textrm{Sr}

<u>Explanation:</u>

The isotopic representation of an atom is: _Z^A\textrm{X}

where,

Z = Atomic number of the atom

A = Mass number of the atom

X = Symbol of the atom

  • <u>For a:</u>

We are given:

Number of neutrons = 78

Atomic number of iodine = 53 = Number of protons

Mass number = 53 + 78 = 131

Thus, the isotopic representation of iodine is _{53}^{131}\textrm{I}

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We are given:

Number of neutrons = 82

Atomic number of cesium = 55 = Number of protons

Mass number = 55 + 82 = 137

Thus, the isotopic representation of cesium is _{55}^{137}\textrm{Cs}

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We are given:

Number of neutrons = 52

Atomic number of strontium = 38 = Number of protons

Mass number = 38 + 52 = 90

Thus, the isotopic representation of strontium is _{38}^{52}\textrm{Sr}

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