Chi a+
CHI3
You can only calculate the empirical formula because you do not have a mass of this compound given. To do the empirical formula assume 100 grams and change percent to grams. Get moles. 80 grams Carbon (1 mole C/12.01 grams) = 6.66 moles C 20 grams hydrogen (1 mole H/1.008 grams) = 19.84 moles H the smallest becomes 1 in the empirical formula and the other number is divided by it, Thus; H/C 19.84 moles H/6.66 moles C = 2.9, which we call 3 so, CH3 --------------- is the empirical formula To get the molecular formula tour question needed to read; How to calculate molecular formula from such ans such mass of compound with these percentages of elements, Which, of course, your question did not provide. Then you would have divided that given mass by the mass total of the elements of the empirical formula, got a whole number by which you would have multiplied the numbers of your empirical formula to get molecular formula.
The law of constant proportion states that a pure chemical compound always contains exactly the same proportion of elements by mass.This information, together with the atomic masses of the elements in the compound enable scientists to determine the formula of a compound.
C3 h3o
The empirical formula for acetylene is C2H2, which indicates that one molecule of acetylene contains two carbon atoms and two hydrogen atoms.
The empirical formula would be CaBr2 since it contains a ratio of 1 calcium to 2 bromine atoms.
The empirical formula for water is H2O, indicating that each molecule of water contains 2 hydrogen atoms and 1 oxygen atom.
The empirical formula for silver oxide is Ag2O, which indicates that the compound contains twice as many silver atoms as oxygen atoms.
It is an empirical formula.
To determine the molecular formula from the empirical formula and molar mass, first find the empirical formula mass by adding the atomic masses of the atoms in the empirical formula. Then, calculate the ratio of the molar mass given to the empirical formula mass. Finally, multiply the subscripts in the empirical formula by this ratio to find the molecular formula; for this case, the molecular formula is C6H18O3.
The empirical formula for C12H12 is CH. The empirical formula represents the simplest whole-number ratio of elements in a compound.
A formula unit is an empirical formula.
An empirical formula has no data about the structure of a compound.
It Has No Empirical Formula.
In this instance, the empirical formula is the same as the formula unit: NaNO3
It has a molecular formula of C10H8 so that would make an empirical formula of C5H4.