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Questions and Answers
What is the definition of a solute?
What is the definition of a solute?
- The liquid mixture in which the minor component is uniformly distributed within the major component
- The substance which dissolves another to form a solution
- The substance which dissolves in a solution (correct)
- The point that contains the maximum amount of solute that is capable of being dissolved
What does molarity (M) mean?
What does molarity (M) mean?
- The substance which dissolves another to form a solution
- The substance which dissolves in a solution
- The number of moles of solute per liter of solution (correct)
- The point that contains the maximum amount of solute that is capable of being dissolved
What is the maximum amount of solute that a solution can contain known as?
What is the maximum amount of solute that a solution can contain known as?
- Normality
- Saturation (correct)
- Molarity
- Percentage
How is the preparation of a 1 Molar (M) solution characterized?
How is the preparation of a 1 Molar (M) solution characterized?
Which unit expression represents concentration based on moles of solute per liter of solution?
Which unit expression represents concentration based on moles of solute per liter of solution?
What is the major component in a solution known as?
What is the major component in a solution known as?
What does mass percent mean?
What does mass percent mean?
How is volume percent defined?
How is volume percent defined?
What does normality (N) measure in a solution?
What does normality (N) measure in a solution?
How do you calculate the weight of NaCl to prepare a 0.5 M solution?
How do you calculate the weight of NaCl to prepare a 0.5 M solution?
In acid-base chemistry, what is an equivalent?
In acid-base chemistry, what is an equivalent?
What does 10% NaOH (% w/w) mean?
What does 10% NaOH (% w/w) mean?
What apparatus is used to measure the amount of NaCl in part B?
What apparatus is used to measure the amount of NaCl in part B?
How do you convert the density to concentration for 10% NaOH?
How do you convert the density to concentration for 10% NaOH?
What does an equivalent measure in redox chemistry?
What does an equivalent measure in redox chemistry?
What does mass percent equal to?
What does mass percent equal to?
Molarity is the number of moles of solute per liter of solution.
Molarity is the number of moles of solute per liter of solution.
The substance that dissolves another to form a solution is called the solute.
The substance that dissolves another to form a solution is called the solute.
Saturation is the point that contains the maximum amount of solute capable of being dissolved.
Saturation is the point that contains the maximum amount of solute capable of being dissolved.
Molarity can be calculated using the formula M = mass/Molar mass.
Molarity can be calculated using the formula M = mass/Molar mass.
Normality is one of the types of concentration measurements.
Normality is one of the types of concentration measurements.
Percentage is not a type of concentration measurement.
Percentage is not a type of concentration measurement.
Mass percent means the number of grams of solute per 100 g of solution.
Mass percent means the number of grams of solute per 100 g of solution.
Volume percent means the number of milliliters of solute per 100 mL of solution.
Volume percent means the number of milliliters of solute per 100 mL of solution.
Normality (N) measures the number of equivalents of solute per liter of solution.
Normality (N) measures the number of equivalents of solute per liter of solution.
An equivalent in acid-base chemistry is the mass of chemical that donates or accepts one mole of protons.
An equivalent in acid-base chemistry is the mass of chemical that donates or accepts one mole of protons.
An equivalent in redox chemistry is the mass of chemical that donates or accepts one mole of electrons.
An equivalent in redox chemistry is the mass of chemical that donates or accepts one mole of electrons.
The weight of NaCl for a 0.5 M solution can be calculated using the molarity formula.
The weight of NaCl for a 0.5 M solution can be calculated using the molarity formula.
The concentration of 10% NaOH in molarity can be calculated using its density and percentage.
The concentration of 10% NaOH in molarity can be calculated using its density and percentage.
Mass percent equals the weight of solute divided by the weight of solution multiplied by 100%.
Mass percent equals the weight of solute divided by the weight of solution multiplied by 100%.
Volume percent is defined as the volume of solute divided by the volume of solution multiplied by 100%.
Volume percent is defined as the volume of solute divided by the volume of solution multiplied by 100%.
To prepare a 0.3 M solution from 10% NaOH (% w/w), the density of NaOH is given as 1.1111 g/ml.
To prepare a 0.3 M solution from 10% NaOH (% w/w), the density of NaOH is given as 1.1111 g/ml.
Study Notes
Definitions and Key Concepts
- A solute is a substance that dissolves another substance to form a solution.
- Molarity (M) is defined as the number of moles of solute per liter of solution.
- The maximum amount of solute that can be dissolved in a solution is called saturation.
- A 1 Molar (M) solution is characterized by containing 1 mole of solute in 1 liter of solution.
Concentration Measurements
- Concentration can be expressed as moles of solute per liter of solution, known as molarity.
- The major component in a solution is referred to as the solvent.
- Mass percent indicates the number of grams of solute in 100 grams of the solution.
- Volume percent is defined as the number of milliliters of solute in 100 milliliters of the solution.
- Normality (N) measures the number of equivalents of solute per liter of solution.
Calculations and Conversions
- To find the weight of NaCl for a 0.5 M solution, use the molarity formula: M = mass / molar mass.
- The concentration of 10% NaOH can be converted to molarity using its density and percentage.
- Mass percent is calculated by dividing the weight of solute by the weight of solution and multiplying by 100%.
Chemical Equivalence
- In acid-base chemistry, an equivalent refers to the mass of chemical capable of donating or accepting one mole of protons.
- In redox chemistry, an equivalent measures the mass of a substance that donates or accepts one mole of electrons.
Measurement Apparatus
- An appropriate apparatus for measuring the amount of NaCl often includes a balance for weighing and volumetric flasks for solution preparation.
Additional Notes
- To prepare a 0.3 M solution from 10% NaOH (% w/w), the density of NaOH (1.1111 g/mL) is essential for calculations.
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Description
This quiz covers the concepts of calculating molarity from % solution and using new concepts of units for expressing concentration. It also helps in determining the calculations to use and how to prepare solutions.
