After 24 hours the expected mass of the copper is 132.
Element Symbol # of Atoms
Iron Fe 2
Oxygen O 12
Sulfur S 3
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The amount of potassium chloride (KCl) in 27.2 kg of a solution containing 18.7% KCl by mass solution is 5.086 kg.
<h3>How to find the mass of solute ? </h3>
Mass of solute = Mass percent of solute x Mass of the solution
Here,
Mass percent of solute = 18.7 %
Mass of the solution = 27.2 kg
Now put the value in above formula we get
Mass of solute = Mass percent of solute x Mass of the solution
= 
= 
= 5.086
Thus from the above conclusion we can say that The amount of potassium chloride (KCl) in 27.2 kg of a solution containing 18.7% KCl by mass solution is 5.086 kg.
Learn more about the Mass Percent here: brainly.com/question/26150306
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The addition of an electron on to the element of hydrogen and ultimately to the electron carrier is an example of reduction. The molecule is becoming reduced or has electrons, and or hydrogen to help facilitate the addition of the electrons on it.
Oxygen's atomic weight is 16.00 amu. 1 mole of oxygen is 6.02 x 1023 atoms of oxygen 1 amu = 1.661 x 10-24g What is the molar mass (g/mole) of oxygen? Molar mass (in grams) is always equal to the atomic weight of the atom! Molar mass (in grams) is always equal to the atomic weight of the atom!