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Empirical and molecular formulas
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Given the following: 42.07% Na, 18.89% P, and 39.04% O, determine the empirical formula.
Na3PO4
Whats the empirical formula of a molecule containing 18.7% of Lithium, 16.3% of Carbon and 65.0% of oxygen?
Li2CO3
Glycerol has a molar mass of 92.09g/mol. Its percent composition is: 39.12% C, 8.75% H, and 51.12% O. What is the molecular formula for glycerol?
C3H8O3
What is the molecular formula for a compound with the empirical formula: K2SO4 and a molecular mass of 696g.
K8S4O16
Given the following: 42.07% Na, 18.89% P, and 39.04% O, determine the empirical formula.
Na3PO4
What is the molecular formula if the empirical formula is CH2O and the molecular molar mass is 180.18?
C6H12O6
You are given the following percentages: 40.05% S and 59.95% O. Find the empirical formula for these elements.
SO3
A compound consists of 72.2% magnesium(Mg) and 27.8% nitrogen(N) by mass. What is the empirical formula?
Mg3N2
How many Carbons "C" are in C18H34O3
18
How many "C" are in CO2?
1
C2H6O Which is the correct empirical formula
C2H6O
A chemical formula that shows the actual # and kinds of atoms present in one molecule of a compound is called_________
Molecular formula
What is the best definition for coefficient?
The big number that tells you the number of molecules.
What is the best definition for subscript?
The little number that tells the number of atoms for each element.
C2F6 what is the correct empirical formula...
CF3
Si2F6 what is the correct empirical formula...
SiF3
What is the empirical formula for N2S3?
N2S3
What is the empirical formula for C4H6?
C2H3
A formula with the lowest whole # ratio of elements in a compound is called
Empirical formula
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