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3 years ago

Determine the molecular formula of a compound that has a molar mass of 183.2 g/mol and an empirical formula of c2h5o2.

Chemistry

2 answers:

zlopas [31]3 years ago

8 0

Answer:

$C_6H_{15}O_6$

Explanation:

Hello,

In this case, one computes the molar mass for the given empirical formula as follows:

$M_{empirical}=12*2+1*5+16*2=61g/mol$

In such a way, one computes how many times the molecular formula's molecular mass is contained into the empirical formula's molecular mass in order to determine the whole number relating them as shown below:

$\frac{183.2g/mol}{61g/mol}=3$

Finally, the molecular formula is three times the empirical formula, hence:

$C_6H_{15}O_6$

Best regards.

Tpy6a [65]3 years ago

6 0

C6H15O6

Good luck and don't forget to rate or mark Brainliest :)

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Answer:

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Explanation:

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For a given chemical reaction if-

1. ΔG = negative and E°cell = positive

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2. ΔG = positive and E°cell = negative

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Since, for this chemical reaction: 

Cr³⁺(1.32 × 10⁻³ M) + Fe²⁺(aq) → Cr²⁺(aq) + Fe³⁺(1.14 M)

ΔG = + 131 × 10³ J ⇒ positive

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