<u>Answer:</u>
<em>The concentration solution by percent in mass is 8.28%</em>
<u>Explanation:</u>
Molarity is moles of solute present in 1L of its solution .
Hence the formula is

Let us convert the numerator and the denominator into mass in g
Numerator :

Denominator :

The formula to find mass percentage is



=8.28% (Answer)
The percent composition of a compound is calculated with the molecular formula: divide the mass of each element found in one mole of the compound by the total molar mass of the compound
Answer:
Fluorine is identified as the most reactive nonmetal and the most electro-negative element in the periodic table, making it the strongest oxidizing agent. Caesium is the most reactive metal in the periodic table, so much that working with this metal often ends in explosions!
Hydrogen is a very reactive gas, and the alkali metals are even more reactive. In fact, they are the most reactive metals and, along with the elements in group 17, are the most reactive of all elements.
Hope that helps.
The answer is A, to my brain power ig B)
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