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Bezzdna [24]
3 years ago
15

How many molecules of ammonia, NH3, are in 3 moles of NH3?

Chemistry
1 answer:
alexandr1967 [171]3 years ago
8 0

The number of molecules in one mole of any substance is equal to Avagadro's number

Avagadro's number is 6.023 X 10²³

Thus

1 mole = 6.023 X 10²³ molecules

for ammonia we are provided with three moles

so to obtain the total number of molecules of ammonia in three moles we will multiply the Avagadro's number with three

total molecules = 3 X 6.023 X 10²³

Total molecules of ammonia = 18.069 X 10²³

In scientific notation

Total molecules of ammonia = 1.8069 X 10²⁴ = 1.81 X 10²⁴

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Rate law : It is defined as the expression which expresses the rate of the reaction in terms of molar concentration of the reactants with each term raised to the power their stoichiometric coefficient of that reactant in the balanced chemical equation.

The balanced equations will be:

CH_3Br+NaOH\rightarrow CH_3OH+NaBr

In this reaction, CH_3Br and NaOH are the reactants.

The rate law expression for the reaction is:

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As we are given that:

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\text{Rate}=k[CH_3Br][NaOH]

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\text{Rate}=0.006M/s

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