Directions: Complete the following statements below by finding the mass percent of the given compound and then 6. FILL IN creating a graph to base your answer. 8-11. Table 1: Percent Mass of Methane, CH4 (C = 12.01 g/mol; H = 1.008 g/mol) O Based from the graph, the element with the big mass percent is with % while the element with the small mass percent is with %.
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PERCENT MASS
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1. In order to get the mass percent of the following elements in the given compounds, we need to gather first the mass of each element in methane which is composed of 1 atom of carbon and 4 atoms of hydrogen. The given mass of carbon is 12.01 grams per molecule while for hydrogen, we have 1.008 grams per molecule. After we gather this initial data, we then need to solve for the total mass of methane.
To get the mass percent of the following element, we need to divide each element/s' total mass in the compound to the total mass of the compound multiplied by 100%. So, for carbon: 12.01/16.042 x 100% = 74.87%
For hydrogen: 4.032/16.042 x 100% = 25.13%
Therefore: based from the graph, the element with the big mass percent is carbon with 74.87% while the element with the small mass percent is hydrogen with 25.13%.
2. Using the same principle that we used in the above calculation, we can also apply this to get the mass percent of sodium nitrate. So it is composed of 3 elements: sodium (Na), nitrogen (N) and oxygen (O).
So: the mass of sodium nitrate is 85 grams.
As we can see, the element with the heaviest mass is the oxygen while nitrogen is the lightest. So, for oxygen: 48/85 x 100% = 56.47%
For nitrogen: 14/85 x 100% = 16.47%
Therefore: based from the graph, the element with the big mass percent is oxygen with 56.47% while the element with the small mass percent is nitrogen with 16.47%.
Percent by mass definition: brainly.ph/question/406006
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