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Why rubber have the same empirical formula as its monomer?
An empirical formula only takes into account the proportions of the elements in a compound. The proportion of elements in a polymer might be the same or similar as the proportion in the monomer from which it is made.
Which could represent the empirical and the formula of a given compound?
The empirical formula is representative for the chemical composition of a compound; the structural formula is representative for the spatial structure of the compound.
Explain why the percent composition of certain compounds are not sufficient to determine the compounds molecular formulas?
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.
How law of constant proportion is applied in experiment empirical formula of magnesium oxide?
The law of constant proportion states that a chemical compound always contains its constituent elements in fixed ratio by mass. In the experiment to determine the empirical formula of magnesium oxide, magnesium is burned in oxygen, resulting in magnesium oxide. By measuring the mass of magnesium and the mass of oxygen reacted, the ratio of these two elements can be calculated. This ratio reflects the law of constant proportion, allowing the empirical formula of magnesium oxide to be determined, typically represented as MgO.
What is the empirical formula of C10H4?
It is an empirical formula.
Why rubber have the same empirical formula as its monomer?
An empirical formula only takes into account the proportions of the elements in a compound. The proportion of elements in a polymer might be the same or similar as the proportion in the monomer from which it is made.
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.
What is the percent composition of a compound with the empirical formula CO2?
The percent composition of a compound with the empirical formula CO2 is 27.3% carbon and 72.7% oxygen.
How do you know when to solve for a empirical formula?
You should solve for an empirical formula when you are given the percent composition of elements in a compound or when you have the molar mass of the compound but not the molecular formula. The empirical formula provides the simplest whole-number ratio of atoms in a compound.
Which could represent the empirical and the formula of a given compound?
The empirical formula is representative for the chemical composition of a compound; the structural formula is representative for the spatial structure of the compound.
How law of constant proportion applied in experiment empirical formula of a compound?
percentage of mg
Explain how your class's results in this experiment support the law of definite composition?
The law of definite composition states that a compound will always have the same proportion of elements by mass regardless of the source or how it was prepared. In the experiment, if the class obtained consistent results in terms of the mass of elements present in the compound, it would support this law. This consistency would demonstrate that the compound was formed with a fixed ratio of elements, reinforcing the idea that compounds have a definite composition.
How can one determine the empirical formula from percent composition?
To determine the empirical formula from percent composition, first convert the percentages to grams. Then divide the grams of each element by its molar mass to find the moles. Finally, divide the moles of each element by the smallest number of moles to get the simplest whole number ratio, which represents the empirical formula.
What is the empirical formula and molecular formula of a compound with a molar mass of 245.8g The composition is 19.53 C 2.44 H 13.02 O and 65.01 Br?
The molar mass of the empirical formula is calculated by summing up the molar masses of the elements in the given composition (which gives a molar mass of 281.6 g/mol). To find the empirical formula, divide the molar mass of the compound (245.8 g/mol) by the molar mass of the empirical formula (281.6 g/mol), which gives approximately 0.873. This means the empirical formula is BrC₆H₈O₃.
Explain why the percent composition of certain compounds are not sufficient to determine the compounds molecular formulas?
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.
The Strange Case of Mole Airlines Flight 10231 how to do this paper?
Use the empirical formula. The numbers might be in percent composition, if that's the case convert to moles and proceed with the empirical formula.
