Nomenclature, Molar Mass, % Composition

Front

What is the percent composition of a compound?

Back

The percent composition of a compound is the percentage by mass of each element in the compound, calculated by dividing the mass of each element by the total molar mass of the compound and multiplying by 100.

Front

How do you calculate the molar mass of a compound?

Back

To calculate the molar mass of a compound, sum the atomic masses of all the atoms in the molecular formula, using the periodic table for atomic weights.

Front

What is the molar mass of Copper (II) Nitrate (Cu(NO3)2)?

Back

The molar mass of Copper (II) Nitrate is 187.56 g/mol.

Front

What is the correct name for BrO3?

Back

The correct name for BrO3 is bromine trioxide.

Front

What is the formula for calculating percent composition?

Back

Percent Composition = (mass of element in 1 mole of compound / molar mass of compound) x 100.

Front

What is the molar mass of Sulfur (S)?

Back

The molar mass of Sulfur is approximately 32.07 g/mol.

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What is the name of N3O3?

Back

The name of N3O3 is trinitrogen trioxide.

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What are the units of molar mass?

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The units of molar mass are grams per mole (g/mol).

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How do you find the percent composition of Copper (I) Sulfide (Cu2S)?

Back

To find the percent composition of Cu2S, calculate the molar mass of Cu2S (63.55*2 + 32.07) and then use the formula for percent composition for Cu and S.

Front

What is the significance of nomenclature in chemistry?

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Nomenclature is important in chemistry as it provides a systematic way to name compounds, ensuring clear communication and understanding among scientists.