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Alex777 [14]
4 years ago
14

Predict the products!

Chemistry
1 answer:
nikitadnepr [17]4 years ago
3 0

Answer:

  • There are two product produced by the reactants

1.  FeI₃  

2. Ag₂CO₃

  • Balance Equation

6AgI + Fe₂ (CO₃)₃ ---------> 2FeI₃ +  3Ag₂CO₃

  • Type of Reaction

Double Displacement

Explanation:

Incomplete Equation of the reaction is

                                  AgI + Fe₂ (CO₃)₃ --------->

  • Predict the Product :

First we have to complete the reaction.

                          AgI + Fe₂ (CO₃)₃ ---------> FeI₃ +  Ag₂CO₃

so from the Reaction

we come to Know about the product

There are two product produced by the reactants

1.  FeI₃  

Named as Iron iodide also called Iron (III) iodide

2. Ag₂CO₃

Named as Silver carbonate

  • Balanced the Equation:

Balanced equation is based on Law of conservation of mass.

Law of conservation of mass:

"mass can be converted from one form to other but neither can be created nor destroy".

So

To balance a reaction it is important that the number of reactant atoms must equal to atoms of the product.

Atoms of Reactant :

Ag = 1

I = 1

Fe = 2

C = 3

O = 9

Atoms of Product:

Ag = 2

I = 3

Fe = 1

C = 1

O = 3

So,

To balance the equation put numbers as a prefix to formula unit in equation that make atom of the reactant and product become s equal.

its a trail and error process.

Balanced Equation :

                       6AgI + Fe₂ (CO₃)₃ ---------> 2FeI₃ +  3Ag₂CO₃

Now the numbers of Reactant and product become equal

Atoms of Reactant :

Ag = 6

I = 6

Fe = 2

C = 3

O = 9

Atoms of Product:

Ag = 6

I = 6

Fe = 2

C = 3

O = 9

  • Type of Reaction
  1. This reaction is double displacement.  It is also called double replacement reaction.
  2. it occur when ions of two salts exchange with each other.
  3. In this reaction Iodide (I¹⁺) ion with exchange carbonate (CO²⁺₃) ion
  4. and Silver (Ag¹⁺) ion with exchange iron (Fe³⁺) ion

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The question is in complete, the complete question is:

Which element has an outer electron configuration of s 2 p4 ?

(A) Ca (B) Cr (C) Ge (D) Se

Answer:

(D) Se

Explanation:

The outer electronic configuration of an atom reflects the group to which it belongs in the periodic table. Each group has its unique outermost electron configuration and number of electrons found in the outermost shell of the atoms of elements in the group.

s 2 p4  is the unique outermost electron configuration of group 16 elements. Group 16 elements have six electrons in their outermost shell. If we consider the options, only Se is a member of group 16. Hence it is only Se that has the outermost electron configuration s 2 p4 .

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What type of change occurs when rust on a nail a. chemical change b. physical change
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Explanation:

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3 years ago
0.265g of an organic compound produced an evaporation 102cm³ of vapour at 373k and 775mmHg percentage composition of the constit
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A. The molecular mass of the compound is 77.9 g/mol

B. The molecular formula of the compound is C₆H₆

<h3><u>Determination of the mole of the compound</u></h3>

We'll begin by calculating the number of mole of compound using the ideal gas equation as shown below:

  • Volume (V) = 102 cm³ = 102 / 1000 = 0.102 L
  • Temperature (T) = 373 K
  • Pressure (P) = 775 mmHg = 775 / 760 = 1.02 atm
  • Gas constant (R) = 0.0821 atm.L/Kmol
  • Number of mole (n) =?

n = PV / RT

n = (1.02 × 0.102) / (0.0821 × 373)

n = 0.0034 mole

<h3><u>A.</u><u> Determination of the </u><u>molecular mass</u><u> of the </u><u>compound</u><u>. </u></h3>
  • Mass = 0.265 g
  • Number of mole = 0.0034 mole
  • Molecular mass =?

Molecular mass = mass / mole

Molecular mass = 0.265 / 0.0034

Molecular mass of compound = 77.9 g/mol

<h3><u>B</u><u>. Determination of the </u><u>molecular formula</u><u> of the compound. </u></h3>

We'll begin by calculating the empirical formula of the compound.

  • Carbon (C) = 92.24%
  • Hydrogen (H) = 7.76%

Empirical formula =?

Divide by their molar mass

C = 92.24 / 12 = 7.69

H = 7.76 / 1 = 7.76

Divide by the smallest

C = 7.69 / 7.69 = 1

H = 7.76 / 7.69 = 1

Thus the empirical formula of the compound is CH

Finally, we shall determine the molecular formula.

  • Molecular mass = 77.9 g/mol
  • Empirical formula = CH
  • Molecular formula =?

Molecular formula = empirical × n = molecular mass

[CH]n = 77.9

[12 + 1]n = 77.9

13n = 77.9

Divide both side by 13

n = 77.9 / 13

n = 6

Molecular formula = [CH]n

Molecular formula = [CH]₆

Molecular formula = C₆H₆

Complete Question:

0.265g of an organic compound produced on evaporation 102cm cube of vapour at 373K and 775mmHg. Percentage composition of the constituent elements are 92.24% C and 7.76% H. Find the molecular mass and molecular formula of the composition.

Learn more about ideal gas equation:

brainly.com/question/14364992

Learn more about molecular formular:

brainly.com/question/512891

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Diagram 4 represents  a state in which particles are loosely packed , thus can be a representation of gas. It also represents the particles in ionized form. Particles are existing as ions bearing positive and negative charges.

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