Percent Composition and Solubility

Front

What is percent composition in chemistry?

Back

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

Front

How do you calculate the percent composition of an element in a compound?

Back

To calculate percent composition, use the formula: (mass of element in 1 mole of compound / molar mass of compound) x 100.

Front

What is the molar mass of magnesium bromide (MgBr2)?

Back

The molar mass of MgBr2 is approximately 184.11 g/mol (24.31 g/mol for Mg and 79.90 g/mol for each Br, with 2 Br atoms).

Front

What is the percent composition of magnesium in magnesium bromide (MgBr2)?

Back

The percent composition of magnesium in MgBr2 is approximately 13%.

Front

What is the molar mass of carbon monoxide (CO)?

Back

The molar mass of CO is approximately 28.01 g/mol (12.01 g/mol for C and 16.00 g/mol for O).

Front

What is the percent composition of oxygen in carbon monoxide (CO)?

Back

The percent composition of oxygen in CO is approximately 57%.

Front

What is solubility in chemistry?

Back

Solubility is the maximum amount of a solute that can dissolve in a given amount of solvent at a specific temperature and pressure.

Front

What factors affect the solubility of a substance?

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Factors affecting solubility include temperature, pressure, and the nature of the solute and solvent.

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What is a saturated solution?

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A saturated solution is one in which the maximum amount of solute has dissolved at a given temperature, and any additional solute will not dissolve.

Front

What is an unsaturated solution?

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An unsaturated solution is one that can still dissolve more solute at a given temperature.