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Among well-characterized compounds, lithium carbide probably contains the highest percentage of carbon by mass. However, it might well be possible to make a compound with more carbon by inducing one substitution on graphene or one of the other multi-atomic forms of carbon.
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What A 70.00-g sample of an unknown compound contains 16.20 g of sulfur what is the percentage by mass of sulfur in the compound?
The percentage is 23,14 %.
What is the percentage of carbon in sic?
The properly written formula, SiC, shows that the substance contains equal numbers of silicon and carbon atoms. Therefore, the atomic percentage of carbon is 50 %. The question may have been intended to ask for mass percentage. The gram atomic mass of silicon is 28.0855 and the gram atomic mas of carbon is 12.011. Therefore, the mass percentage of carbon is 100[12.011/(12.011 + 28.0855)] or about 29.956, to the justified number of significant digits.
What is the mass percent of hydrogen in ammonium phosphate?
The percentage of H in ammonium phosphate is the mass of H divided by the mass of the entire compound.
A 76.00 g sample of unknown compound contains 12.90g of sulfur. what is the percentage by mass of sulfur in the compound?
it would be 16.97%
What is the percent composition of hydrogen in benzene?
The formula shows that the compound contains 8 hydrogen atoms per molecule, of which the gram molecular mass is 46.07. Each hydrogen atom has a gram atomic mass of 1.00794. Therefore, the percent by mass of hydrogen in the compound is 100[8(1.00794)/46.07] or 17.50 %, to the justified number of significant digits. (The value "8" is exact.)
Is the element with largest atomic mass always present in highest percentage by mass in a compound?
yes
How are mass calculations used?
Mass percentage calculations determine the percentage of an element based on mass in a compound. This can then be used to determine the percentage in a compound of each individual element.
Does The element with the largest subscript in a formula have the largest percent by mass in the compound?
Sometimes, but not necessarily: The largest percent by mass in a compound is that of the element for which the product of the subscript and the atomic weight is highest. For example, there is more carbon than hydrogen by mass in CH4.
What percent of carbon by mass in C17H19NO3?
The percentage of carbon is 71,58 %.
What is the richest source of nitrogen on a mass percentage?
NH3 which is ammonia has the highest percentage by mass of nitrogen.
What is the percentage of composition in the atmosphere?
the percentage by mass of each element in a compound.
What is molecular mass?
the relative molecular mass or molecular weight of a compound is the mass of a molecule of the compound relative to the mass of a carbon atom taken as exactly 12.
A compound is formed when 48 grams of carbon 8 grams of hydrogen and 68 grams oxygen combine what is the percent by mass of oxygen?
The percentage of oxygen is 54,84 %.
Which compound has a relative atomic mass of 44?
Carbon dioxide
What is the percent compistion of a compound?
The percent composition of a compound tells the amount of each element in the compound as a percentage. It is possible to find if the mass of an element and the total mass of the compound is known.
What A 70.00-g sample of an unknown compound contains 16.20 g of sulfur what is the percentage by mass of sulfur in the compound?
The percentage is 23,14 %.
What is the percentage of oxgyen in Ba OH 2 x 8H2O?
Molar mass of all oxygen in compound/Total molar mass of compound * 100 = % oxygen in compound ==================
