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.
.
Learn more about percent by mass:
brainly.com/question/18646836?referrer=searchResults
Pythagorean theorem should be used to determine the length of any of the three sides of a right-angled triangle.
<h3>What is Pythagorean Theorem?</h3>
Pythagorean theorem can be defined as a fundamental mathematical equation in Euclidean geometry and it can be used to determine the length of any of the three (3) sides of a right-angled triangle.
Mathematically, Pythagorean's Theorem is given by this formula:
c² = a² + b²
<u>Where:</u>
<u>For example:</u>
c² = 3² + 4²
c² = 9 + 16
c² = 25
c = √25
c = 5 units.
Read more on Pythagorean Theorem here: brainly.com/question/16176867
Aw thx! Have an awesome day and weekend of thanksgiving!
The Fifteenth reconstruction amendment (1869) was intended to protect freedmen against the injustices depicted in this cartoon.
In 1869, Congress passed a constitutional amendment guaranteeing black suffrage.
The Civil War Amendments, often known as the Reconstruction Amendments, are the Thirteenth, Fourteenth, and Fifteenth Amendments to the United States Constitution, which were ratified between 1865 and 1870.
The Thirteenth Amendment (1864) outlawed slavery and involuntary servitude.
The Fourteenth Amendment (1866) emphasizes citizenship rights and equal legal protection for all people.
The Fifteenth Amendment (1869) forbids discrimination in citizens' voting rights based on "race, color, or prior condition of servitude."
To learn more about Reconstruction Amendments click here:
brainly.com/question/5498024
#SPJ4
The workers were motivated to organize the pullman strike because the company cut their wages.
Pullman strike was resultant of reducing in compensation and terminating workers in response to a preferred currency collapse. An average pay cut was 33 percent. But on occasion, it increases to between 40% and 50%. The workforce's wage had already been reduced without the subsequent rent discounts.
The fact that the employee compensation was cut while the rent remained the same was the main reason for the Pullman strike. Beginning on May 11 of the same year, 1894, it was virtually an all-out railroad strike in the United States. As a gesture of goodwill toward the American labor movement in the midst of the crisis, President Grover Cleveland and Congress established Labor Day as a public holiday on June 28.
To know more about Pullman Strike here
brainly.com/question/612062
#SPJ4
