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3 years ago

Protactinium has 516 years of half life how many decays will it go through to become 1/64th of the substance? ,

Chemistry

1 answer:

Ulleksa [173]3 years ago

6 0

Answer:

6 decays

Explanation:

Each half life period reduced the amount of substance by half

64 = 2⁶
1/64 = (1/2)⁶

So 6 of half life cycles or decays will go.

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2 years ago

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guapka [62]

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Rate law is defined as the rate of a reaction is directly proportional to the concentration of reactants at constant temperature.

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What is the only additional information needed to calculate the empirical formula of a compound if the masses of each element of

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Mass percentages of the the elements in the compound is the only additional information needed to calculate the empirical formula of a compound if the masses of each element of the compound are provided.

<h3>What is Empirical Formula ? </h3>

The Empirical formula is the simplest whole number ratio of atoms present in given compound.

<h3>What is Molecular formula of Compound ?</h3>

Molecular Formula = Empirical Formula × n

n = $\frac{\text{Molar Mass}}{\text{Empirical Formula weight}}$

Thus from the above conclusion we can say that Mass percentages of the the elements in the compound is the only additional information needed to calculate the empirical formula of a compound if the masses of each element of the compound are provided.

Learn more about Empirical Formula here: brainly.com/question/1603500

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