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
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.
Density of a substance = (mass of a sample of the substance) divided by (volume of the same sample)
NO2 is the molecular formula for NO2.
You would have a very tough time, because that isn't the formula to calculate work. (distance) divided by (time) is the formula to calculate speed. The formula to calculate work is: (force) multiplied by (distance).
an is a built in formula that uses arguments to calculate information. is FUNCTION
You can use a graph to calculate speed.
A formula unit.
A formula unit.
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.
Because unlike the empirical formula, the molecular formula does not have to be the simplest ratio.If by chance you are given the percent composition of the elements in a substance, you could calculate the empirical formula and then the empirical formula's mass. However, the molecular formula equation is molecular formula= (empirical formula)n, where n is the mass of the molecular formula divided by the mass of the empirical formula. You would, therefore, need to know the mass belonging to the molecular formula, which you are not given.
Calculate the empirical formula weight. Find the ratio of the molecular weight to the empirical formula weight. (n= molecular weight/ empirical formular weight). Multiply each subscript of the empirical formula by n.
White sugar and brown sugar are gluten free. Alcohol sugar has gluten or a gluten effect to it. Do not eat anything with sugar alcohol in it if you're gluten intolerant.
That is a fictitious molecular formula; no substance contains it.
Yes it can be
If C2H5 was the molecular formula its molecular mass would be 29 ( 12 x 2 + 5 x 1) However, 29 x 2 = 58 the actual molecular mass. So we double up the atoms in C2H5 to C4H10 . C4H10 is the molecular formula.
The identity of a substance (chemical compound) is defined by his chemical formula and molecular structure.
Ag is the molecular formula for silver. If you look on a periodic table, you will find this substance with the transitional metals and with the atomic number of 47.
The molecular formula provides these information .