Percent Composition and Solubility

Percent Composition and Solubility

Assessment

Flashcard

Science

9th - 12th Grade

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

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15 questions

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1.

FLASHCARD QUESTION

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.

2.

FLASHCARD QUESTION

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.

3.

FLASHCARD QUESTION

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).

4.

FLASHCARD QUESTION

Front

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

Back

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

5.

FLASHCARD QUESTION

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).

6.

FLASHCARD QUESTION

Front

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

Back

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

7.

FLASHCARD QUESTION

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.

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