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What is the molecular formula of a compound containing 89 percent cesium Cs and 11 percent oxygen O with a molar mass equals 298 g per mol?
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∙ 12y ago
Cs2O2
APEX 2021
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What is the importance of percentage composition?
Percent composition can be used to calculate the percentage of an element/compound in a mixture. From the percent composition, you can also find the empirical formula. And from the empirical formula you can find the actual molecular weight.
What is the fractional error formula?
What is the formula for percent fractional error? (Physics)
What is the percent composition in KCLO3 to the nearest whole number of potassium?
Find the molecular weight of potassium chlorate, which is approximately: 122.6 g/mol (K @39.1 g/mol + Cl @ 35.5 g/mol; O @ 3 x16.0 g/mol)Now divide the molecular weight of potassium (K) by the total molecular weight of the compound to get the % composition of potassium in 1 molecule of potassium chlorate.(39.1 g/mol)/(122.6 g/mol) * 100% = 31.9% or 32%
How do you calculate a ratio from a percent?
Formula to calculate the ratio
What is the solute in a brass alloy containing seventy-five percent copper and twenty-five percent zinc?
the solute is zinc because it is smaller in quantity
What is the molecular formula of a compound containing 89 percent cesium Cs and 11 percent oxygen O with a molar mass equals 298 gmol?
Cs2O2
If a compound containing chromium and silicon has 73.52 mass percent chromium what is its empirical formula?
Cr3Si2 is the empirical formula for a compound containing chromium and silicon an has 73.52 mass percent chromium.
Empirical formula of a compound containing 60.3 percent magnesium and 39.7 percent oxygen?
MgO
An unknown sample with a molecular mass of 180.0g is analyzed to yield 40 percent C 6.7 percent H and 53.3 percent O What is the empirical formula and the molecular formula of this compound?
ch2o and c6h12o6
Percent age of nitrogen in urea and ammonia?
it can be calculated using the formula percentage composition of N =Gram molecular mass of nitrogen in the compound/ Gram molecular mass of compound *100
What is the formula for the percent by mass of a compound?
((mass of element)/(mass of compound))*100
What additional information is needed to calculate the molecular formula from the percent by mass of each element in a compound?
The number of atoms of one element in the compound
What is the empirical formula of a hydrocarbon containing 85.7 percent carbon and 14.3 percent hydrogen?
The molecular formula is C3H6 and the empirical formula is CH2. This compound is called propene or propylene, and it is a colorless gas.
What is the formula for 75 percent arsenic and 28 percent oxgen?
This compound is the trioxygen diarsenic oxide (As2O3), containing 75,7442 % As and 24,2558 % oxygen.
What do you need to calculate the percent-age composition of a substance?
The molecular formula of the compound can be calculated from the composition of element in a compound. The next steps are involved in the calculation of percentage of every element in a compound.
Can you determine the molecular formula of a substance from its percent composition?
Not completely. The empirical formula of a substance can be determined from its percent composition, but a determination of molecular weight is needed to decide which multiple of the empirical formula represents the molecular formula.
What is the importance of percentage composition?
Percent composition can be used to calculate the percentage of an element/compound in a mixture. From the percent composition, you can also find the empirical formula. And from the empirical formula you can find the actual molecular weight.
