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Diano4ka-milaya [45]
3 years ago
12

What is the molecular formula of the molecule that has an empirical formula of C2H2O and a molar mass of 252.22 g/mol?

Chemistry
1 answer:
Kipish [7]3 years ago
3 0
Ok I got it wrong I think but I'm too lazy to delete all my hard work soooo.... merry Christmas?
Molar masses of
C = 12.0107
H = 2.016
O = 15.999
Now what we gots tuh do is take the masses and add them together, but we have to add 2 carbons and 2 oxygens because we are trying to find the molar mass of the empirical formula. So...
2(12.0107)+2(2.016)+15.999
24.0214+4.032+15.999 = 44.0524
Now that we have the molar mass of the empirical formula, we divide the 252.22 by it.
252.22/44.0524 = 5.7254
72.0642+12.096+95.994
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A COVALENT BOND, FORMS BETWEEN ELEMENTS WITH SIMILAR  ELECTRONEGATIVITY AS SHARING OF ELECTRON PAIRS BETWEEN ATOMS IS EASIER AS THEY ARE IDENTICAL.

Explanation:

Bonding atoms with similar electronegativity values form covalent bonds.

A covalent bond, also called a molecular bond, is a chemical bond that involves the sharing of electron pairs between atoms.

Covalent bonds form between two nonmetal atoms with identical or relatively close electronegativity values

Electronegativity is a measure of the tendency of an atom to attract a bonding pair of electrons, also it is the strength an atom has to attract a bonding pair of electrons to itself.

Pure covalent bonds result when two atoms of the same electronegativity bond. This occurs only when two atoms of the same element bond with each other.

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3 years ago
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3 years ago
the men's world record for swimming 1500.0 m in a long course pool (as of 2007) is 14 min 34.56 s. At this rate, how many second
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140 s. It would take 140 s to swim 0.150 mi .

<em>Step 1</em>. Convert the <em>time to seconds</em>

Time = 14 min × (60 s/1 min) + 34.56 s = 840 s + 34.56 s = 874.56 s

<em>Step 2</em>. Convert <em>miles to metres </em>

Distance = 0.150 mi × (1609.3 m/1 mi) = 241.4 m

<em>Step 3.</em> Calculate the <em>time to swim 241.4 m</em>

Time = 241.4 m × (874.56 s/1500 m) = 140 s

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