Identifying Mixtures and Solutions - High School Chemistry
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What is the molarity of a 
solution that contains 
of potassium nitrate?
What is the molarity of a
In order to solve for molarity, we need to know the necessary equation to use. Molarity is given by the moles of solute divided by the liters of solution.
Since we are given the mass of potassium nitrate, we must first convert it into moles before we can solve for the molarity of the solution. Potassium nitrate has the formula 
. Use this to calculate the molar mass.
Now that we have the number of moles, we can solve for the molarity of the solution using the given volume:
In order to solve for molarity, we need to know the necessary equation to use. Molarity is given by the moles of solute divided by the liters of solution.
Since we are given the mass of potassium nitrate, we must first convert it into moles before we can solve for the molarity of the solution. Potassium nitrate has the formula
Now that we have the number of moles, we can solve for the molarity of the solution using the given volume:
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Which of the following is an example of a mixture?
Which of the following is an example of a mixture?
A mixture can be filtered or otherwise separated into its individual components. In this case, we could filter out the solid yeast from the bottom of the bottle of liquid wine. However, we could not filter out the salt, sugar, or nutrients since they are chemically mixed into the water, are in the same phase. The the salt water, coffee, and nutrient water are incorrect since these are solutions.
A mixture can be filtered or otherwise separated into its individual components. In this case, we could filter out the solid yeast from the bottom of the bottle of liquid wine. However, we could not filter out the salt, sugar, or nutrients since they are chemically mixed into the water, are in the same phase. The the salt water, coffee, and nutrient water are incorrect since these are solutions.
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Which of the following is an example of a solution?
Which of the following is an example of a solution?
To identify a solution, look for a homogenous mixture composed of only one phase. Thre rice, salad, and fertilizer are descriptions of mixtures: combinations of materials which can be physically separated. The only option describing a solution is the lemonade solution since the concentrate is dissolved in water, which results in a homogenous mixture. Solutions are both mechanically and chemically combined.
To identify a solution, look for a homogenous mixture composed of only one phase. Thre rice, salad, and fertilizer are descriptions of mixtures: combinations of materials which can be physically separated. The only option describing a solution is the lemonade solution since the concentrate is dissolved in water, which results in a homogenous mixture. Solutions are both mechanically and chemically combined.
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Which is considered the solute when hydrochloric acid is used to disolve sodium bisulfite?
Which is considered the solute when hydrochloric acid is used to disolve sodium bisulfite?
The solvent can be thought of as the substance present in greater amount, or the substance in which the solute is dissolved. Solvents are often liquid. The solute is the substance present in lesser amounts, and is dissolved by the solvent. In this case, the hydrochloric acid is the solvent, because it dissolves the sodium bisulfite. Because it is getting dissolved, the sodium bisulfite is the solute.
The solvent can be thought of as the substance present in greater amount, or the substance in which the solute is dissolved. Solvents are often liquid. The solute is the substance present in lesser amounts, and is dissolved by the solvent. In this case, the hydrochloric acid is the solvent, because it dissolves the sodium bisulfite. Because it is getting dissolved, the sodium bisulfite is the solute.
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Which phase label subscript is associated with a soluble compound?
Which phase label subscript is associated with a soluble compound?
If something is soluble, it means it's dissolved in liquid. Generally, the compound associate with the liquid (l) phase label is water; everything else takes the (aq) phase. Note that all these phase labels are written as superscripts after the species they are labeling.
If something is soluble, it means it's dissolved in liquid. Generally, the compound associate with the liquid (l) phase label is water; everything else takes the (aq) phase. Note that all these phase labels are written as superscripts after the species they are labeling.
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