Answer is: <span>2 molar, but 2 moles of a solute in 1 liter of solution.
</span>This is molar concentration<span> (c) or </span>molarity and it<span> is a measure of the </span>concentration<span> of a </span>solute <span>in a </span>solution.
<span>Unit for molarity (c = n/V) is the number of </span>moles (n)<span> per </span>litre (V)<span>, having the unit symbol mol/L or sometimes mol/dm</span>³.
The mass of oxygen in 4 moles of C2H4O2 is 128g.
<h3>How to calculate mass?</h3>
The mass of a substance can be calculated by multiplying the number of moles of the substance by its molar mass.
Molar mass of C2H4O2 = 12(2) + 1(4) + 16(2) = 60g/mol
mass of C2H4O2 = 60g/mol × 4 moles = 240grams
However, the mass of oxygen in the compound can be calculated as follows:
molar mass of oxygen/molar mass of compound × 240 grams
32g/mol ÷ 60g/mol × 240g
= 128g
Therefore, the mass of oxygen in 4 moles of C2H4O2 is 128g.
Learn more about mass at: brainly.com/question/11954533
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Answer:
Helium
Explanation:
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The question is asking to give and states the formulas for the mercury compound and base on my research and further investigation, the answer would be HgSO, Li2S2O3 and <span>(NH4)3PO4. I hope you are satisfied with my answer and feel free to ask for more if you have questions and further clarifications </span>
EXPLANATION :
mass is the quantity of matter in an object .
volume is the amount of space that something contains or fills .
density is the thickness of a solid , liquid or gas measured by its mass per unit of volume.
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