The percent composition of a compound is calculated with the molecular formula: divide the mass of each element found in one mole of the compound by the total molar mass of the compound
<span>How does the modern Periodic Table of the Elements differ from Mendeleev's chart?</span>
Dmitri Mendeleev's periodic table<span> featured </span>elements<span> arranged in accordance with their atomic mass, while the </span>modern table<span> has </span>elements<span> arranged according to </span>periodic<span> number. </span>Mendeleev's periodic table<span> also had the </span>elements<span> arranged vertically, whereas the </span>modern table<span> has them arranged horizontally.
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Answer:
write down each element and what you need to know about it repeatedly, and it will burn into your brain
Explanation:
Answer:
<h2>11.2 g</h2>
Explanation:
Given,
Mass of P = 4.89 g
Molar mass of = 30.9738 g/mol
The formula for the calculation of moles is shown below:
Thus,
According to the reaction shown below as:-
4 moles of P on reaction forms 2 moles of diphosphorus pentoxide
Also,
1 mole of P on reaction forms 2/4 mole of diphosphorus pentoxide
0.158 moles of P on reaction forms moles of diphosphorus pentoxide
Moles of diphosphorus pentoxide = 0.079 moles
Molar mass of diphosphorus pentoxide = 141.9445 g/mol
<u>Mass = Moles * Molar mass = 0.079 moles * 141.9445 g/mol = 11.2 g</u>
The oxidation of a 16-carbon fatty acid produces 8 acetyl CoA molecules. A 16-carbon fatty acid is a palmitic acid. To determine the number of moles produced in the oxidation reaction, divide the number of carbon chains in the fatty acid by 2.
16 moles / 2 = 8 moles CoA <span />