Considering the definition of percentage by mass, the sample of pure lithium nitrate contains 7.99% lithium by mass.
<h3>Definition of percentage by mass</h3>
The percentage by mass expresses the concentration and indicates the amount of mass of solute present in 100 grams of solution.
In other words, the percentage by mass of a component of the solution is defined as the ratio of the mass of the solute to the mass of the solution, expressed as a percentage.
The percentage by mass is calculated as the mass of the solute divided by the mass of the solution, the result of which is multiplied by 100 to give a percentage. This is:

<h3>This case</h3>
Because percent by mass indicates the ratio of solute to solution based on mass, if the sample has twice the mass of the first sample, the ratio remains constant.
So the percentage by mass is the same.
That is, the sample of pure lithium nitrate contains 7.99% lithium by mass.
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According to “Congress and the Quest for Power” by Lawrence Dodd, people enter politics because of their quest for power.
<h3>Dodd asserts that “
reelection” is necessary for three reasons. What are these three reasons?</h3>
The three reasons why reelections are required are:
- Personal Power
- Aura of Personal Legitimacy
- Opportunity go gain expertise and experience.
<h3>The “electoral connection” will lead members of Congress to emphasize what traits? </h3>
The “electoral connection” will lead members of Congress to emphasize :
- Form over substance
- Position Taking
- Advertisement
- Credit claiming.
<h3>What traits or actions will they begin to care about less?</h3>
The traits or actions they begin to care about less are:
- Failure to take clear and controversial positions;
- Failure to make hard choices
- Failure to exercise power.
<h3>What motive causes each member of Congress to be in conflict with each other?</h3>
The need to exercise power for making key policy decisions.
<h3>Where do Congress members spend the most time? Why?</h3>
They spend most of their time in:
- the committee or sub committee rooms
- in caucus meetings; or
- Office work related to legislation.
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Answer:
The main idea is a complete sentence; it includes the topic and what the author wants to say about it. If the author states the main idea in his paragraph it is called a “topic sentence.”
Explanation:
Answer:
all of the above is the correct answer