Empirical & Molecular Formulas

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Jasmine Chow 1F
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Empirical & Molecular Formulas

Postby Jasmine Chow 1F » Wed Oct 10, 2018 9:13 pm

Can the empirical and molecular formula be the same?

Beatrice Petelo 1F
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Joined: Fri Sep 28, 2018 12:17 am

Re: Empirical & Molecular Formulas

Postby Beatrice Petelo 1F » Wed Oct 10, 2018 9:15 pm

Yes, they can! Empirical formula tells you the most reduced form of elements in a compound, while the molecular formula gives you the actual number of those elements. Sometimes a molecular formula's compound can no longer be reduced.

Manu Vohra 1L
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Re: Empirical & Molecular Formulas

Postby Manu Vohra 1L » Wed Oct 10, 2018 9:16 pm

Yes, there are cases when the empirical and molecular formulas are the same. This happens when the molar mass of the calculated empirical formula matches the molar mass given to you for the molecular formula.

Sarah Fatkin 4I
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Re: Empirical & Molecular Formulas

Postby Sarah Fatkin 4I » Wed Oct 10, 2018 9:25 pm

Yes, they can! Just make sure you divide the given molar mass by the molar mass of the empirical formula to double check.

Marcela Udave 1F
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Re: Empirical & Molecular Formulas

Postby Marcela Udave 1F » Wed Oct 10, 2018 11:30 pm

Yes, the empirical and molecular can defiantly be the same.

Xingzheng Sun 2K
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Re: Empirical & Molecular Formulas

Postby Xingzheng Sun 2K » Fri Oct 12, 2018 4:12 am

Yes, they can be the same when the molecule, or the molecular formulas, is at the simplest form, then it is the empirical formula.

Brian Kwak 1D
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Re: Empirical & Molecular Formulas

Postby Brian Kwak 1D » Fri Oct 12, 2018 9:39 am

Yes the molecular and empirical formulas can be the same. Just remember to calculate the molar mass of said compound. Since the empirical formula is the ratio of atoms in relation to the element with the lowest moles.

Aaron Ang 4H
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Re: Empirical & Molecular Formulas

Postby Aaron Ang 4H » Fri Oct 12, 2018 11:48 am

Yes, the empirical and molecular formula can be the same depending on the molar weight provided by the question. For example, if your empirical formula was H2O and the molar weight provided was 18.02, then the molecular formula would also be H2O.

Maria Nabagala 3E
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Re: Empirical & Molecular Formulas

Postby Maria Nabagala 3E » Fri Oct 12, 2018 1:09 pm

Yes. If you divide the given molar mass and the molar mass you get by solving the question and the result is 1, then most likely the empirical formulas and the molecular formula will be the same.

DavidEcheverri3J
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Joined: Fri Sep 28, 2018 12:26 am

Re: Empirical & Molecular Formulas

Postby DavidEcheverri3J » Fri Oct 12, 2018 1:19 pm

Jasmine Chow 1F wrote:Can the empirical and molecular formula be the same?

They can be the same as long as the molar mass of the molecule is equal to the molar mass that would be given by the empirical.

505211599
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Re: Empirical & Molecular Formulas

Postby 505211599 » Fri Oct 12, 2018 1:24 pm

Yes they can. If the molar mass of the empirical formula is the same or relatively similar to that of the molecular formula, then the empirical formula is the molecular formula.

Hadji Yono-Cruz 2L
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Joined: Fri Sep 28, 2018 12:26 am

Re: Empirical & Molecular Formulas

Postby Hadji Yono-Cruz 2L » Tue Nov 27, 2018 2:00 pm

Yes they can, if the combined mass of the empirical formula is the same as the molecular mass given then they are the same.


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