3 years ago

C15H28 is the formula of

Chemistry

1 answer:

Olegator [25]3 years ago

5 0

Cyclopentadecene is it

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How many atoms are 0.750 moles of zinc?

Darya [45]

<span>.750 moles X (6.02 x10^23 atoms/1 mol)= 4.52 X 10^23 atoms is the answer </span>

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3 years ago

A solution is made by mixing of water and of acetic acid . Calculate the mole fraction of water in this solution. Be sure your a

Molodets [167]

Answer:

The answer is "0.35".

Explanation:

please find the complete question in the attached file.

Mass of $CH_3C0_2 H$ $= 77 \ g \\\\$

Molar mass of $CH_3C0_2 H$ $= 60.05 \ \frac{g}{mol} \\\\$

No of moles in $n_{CH_3CO_2H}$ $= 77 \ g \times \frac{1 \ mol \ CH_3C0_2H}{60.05 \ g}$

$= 1.28 \ mol \ CH_3CO_2H$

Mass of water $(H_2O)$ $= 42 \ g$

The molar mass of water $(H_2O)$ $= 18.02 \ \frac{g}{mol}$

moles of water $n_{H_2O}$ :

$= 42 \ g \times \frac{1 mol H_2O}{18.02 \ g} \\\\= 2.33 \ mol \ H_2 O$

Molfraction of acetic acid:

$X CH_2CO_2H = \frac{n_{CH_3CO_2H}}{n_CH_3CO_2H +n_{H_2}}\\\\$

$=\frac{1.28 \ mol}{1.28 \ mo1 + 2.33 mol}\\\\ = 0.354\\\\= 0.35$

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3 years ago

Which subatomic particles affect the mass of an atom

klasskru [66]

Answer:

protons and neutrons

Explanation:

those particles account for 99.99% of mass

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deduce the chemical formula of strontium chloride, if 264g of strontium react with 213g of chloride?

zheka24 [161]

Strontium and chlorine react to form strontium chloride with the formula SrCl2.

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NEED HELP ASAP WILL MARK BRAINLIEST

Andreas93 [3]

Answer: only O is unbalanced

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There are only 2 oxygen atoms on the left but in the right there are 4

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4 years ago