An atom with atomic number of 6 would have how many protons?

Answer:

                     Mass of Sodium  =  574.75 g

                     Mass of Chlorine  =  886.25 g

Explanation:

                   The  balance chemical equation for the synthesis of NaCl is,

                                        2 Na + Cl₂ → 2 NaCl

Step 1: Find out moles of each reactant required,

According to balance chemical equation,

                 2 moles of NaCl is produced by  =  2 moles of Na

So,

         25 moles of NaCl will be produced by  =  X moles of Na

Solving for X,

                     X  =  25 mol × 2 mol /  2 mol

                     X  =  25 moles of Na

Similarly for Cl₂,

According to balance chemical equation,

                 2 moles of NaCl is produced by  =  1 mole of Cl₂

So,

         25 moles of NaCl will be produced by  =  X moles of Cl₂

Solving for X,

                     X  =  25 mol × 1 mol /  2 mol

                     X  =  12.5 moles of Cl₂

Step 2:Convert each moles to mass as;

Mass  =  Moles × Atomic Mass

For Na,

Mass  =  25 mol × 22.99 g/mol

Mass  =  574.75 g

For Cl₂,

Mass  =  12.5 mol × 70.90 g/mol

Mass  =  886.25 g

Mass of Sodium =  574.75 g and Mass of Chlorine =  886.25 g

The  balanced chemical equation for the synthesis of NaCl:

The number of moles can be calculated by dividing given mass over molar mass.

2 Na + Cl₂ → 2 NaCl

Calculation for moles:

2 moles of NaCl is produced by  =  2 moles of Na

So,

25 moles of NaCl will be produced by  =  x moles of Na

Solving for x,

x  =  25 mol × 2 mol /  2 mol

x =  25 moles of Na

Similarly for Cl₂,

2 moles of NaCl is produced by  =  1 mole of Cl₂

So,

25 moles of NaCl will be produced by  =  x moles of Cl₂

Solving for x,

x  =  25 mol × 1 mol /  2 mol

x =  12.5 moles of Cl₂

Conversion of moles from mass:

Mass  =  Moles × Atomic Mass

For Na,

Mass  =  25 mol × 22.99 g/mol

Mass  =  574.75 g

For Cl₂,

Mass  =  12.5 mol × 70.90 g/mol

Mass  =  886.25 g

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Answer : The characteristic properties of a substance always remains the same irrespective of the sample being observed is large or small.

Few examples of characteristic properties of any substances includes freezing or melting point, boiling or condensing point, density, viscosity and solubility. They are specific for specific substances and which makes them easily recognizable.

Whereas chemical properties are specific for one substance which chemically transformed into another substances.

The dark-colored mutation could be beneficial in a polluted area because this phenotype may confer an adaptive advantage.

A mutation is any alteration in the nucleotide DNA sequence (genome) of an organism.

Mutation can be beneficial, deleterious, or neutral depending on the environmental conditions in which the individual lives.

In this case, the dark-colored mutation could be beneficial for an insect living in a polluted area because bright-colored phenotypes make the moth very conspicuous to visual predators.

In consequence, dark-colored insects have more chances to survive and reproduce (i.e., they have an adaptive advantage), thereby these insects have more chances of passing this mutation to the next generation.

In conclusion, the dark-colored mutation could be beneficial in a polluted area because this phenotype may confer an adaptive advantage.

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