Explanation:
Given parameters:
Mass of sample = 235g
Molecular mass of sample = 128.1g
Empirical formula = CH₂O
Unknown:
Mass of each element in the sample = ?
Solution:
To solve this problem, we must know that the empirical formula of any compound is the simplest ratio of the atoms it contains. This is not the true formula of the compound.
Molecular formula = (Empirical formula)ₙ
Let us find the molecular mass of the sample;
CH₂O = 12 + 2(1) + 16 = 30g
128.1 = (30)n
n = 4
The molecular formula of the compound is; (CH₂O)₄ = C₄H₈O₄
Now to find the grams of each element in the sample;
Express the molecular mass of each element and that of the compound as a fraction and multiply with the given mass;
For C;
= 88.06g
H; 
= 14.68g
O: 
= 117.41g
learn more:
Mass composition brainly.com/question/3018544
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Explanation:
one thing to know is that higher surface area = higher boiling point.
NaCl has the smallest surface area, so it's the first one.
H2O has less surface area than methane, so it's second.
Methane has more surface area than H20, so it's third.
The big molecule has the most surface area, so it's last
It was named Avagadro number for the reason that it was discovered by Amadeo Avagadro, it was named after his last name. The one who in reality initially evaluated the real number of particles in a given substance, was Josef Loschmid. Avagadro was a legal counselor who had an enthusiasm for it, and the reason the number is named after him was a direct result of a French physicist named Jean Baptiste Perrin. Perrin utilized the term as a result of Avagadro's enthusiasm for Brownian movement. What Avagadro had done was assembled everything that researchers had found to help clarify the varieties that existed amongst iotas and atoms. The mole unit is short for the German word molekulargewicht. It was to some degree an aggregate push to build up the idea. Every individual that is said to have found it, is an alternate individual, however these four individuals are the most pertinent
C2H6 is the most polarizable and other two are non-polar molecules
Paine is referring to the difficulties facing the colonists to stand up against the British Empire against imposed taxes and foreign rule. He says "<span>Tyranny, like hell, is not easily conquered; yet we have this consolation with us, that the harder the conflict, the more glorious the triumph". This emphasises his point that the fight is against tyranny, although the battle may be difficult.</span>
