What is the molecular formula of the $C_{3} H_{5} O_{2}$ $C_3H_5O_2$ , if the gram molecular mass is 146 g/mol?

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What is the molecular formula of the $C_{3} H_{5} O_{2}$ $C_3H_5O_2$ , if the gram molecular mass is 146 g/mol?

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Answer 1 · 2017-08-29T18:28:27

We gots an empirical formula.......and we use this to determine a molecular formula of $C_{6} H_{10} O_{4}$ $C_6H_10O_4$ .

Explanation:

We gots an empirical formula of $C_{3} H_{5} O_{2}$ $C_3H_5O_2$ OF WHICH THE MOLECULAR FORMULA IS A SIMPLE WHOLE NUMBER MULTIPLE.

Why the shouting? Because I want to emphasize that the molecular formula may be represented as ${C_{3} H_{5} O_{2}}_{n}$ ${C_3H_5O_2}_n$ .

And thus .............................

$146 \cdot g \cdot m o l^{- 1} \equiv n \times {3 \times 12.011 + 5 \times 1.00794 + 2 \times 16.00} \cdot g \cdot m o l^{- 1}$ $146*g*mol^-1-=nxx{3xx12.011+5xx1.00794+2xx16.00}*g*mol^-1$

And so $n = \frac{146 \cdot g \cdot m o l^{- 1}}{73.0 \cdot g \cdot m o l^{- 1}}$ $n=(146*g*mol^-1)/(73.0*g*mol^-1)$

And clearly $n = 2$ $n=2$ ............

And thus our $molecular formula = 2 \times C_{3} H_{5} O_{2} = C_{6} H_{10} O_{4}$ $"molecular formula"=2xxC_3H_5O_2=C_6H_10O_4$ .

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What is the molecular formula of the $C_{3} H_{5} O_{2}$ $C_3H_5O_2$ , if the gram molecular mass is 146 g/mol?

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Explanation:

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What is the molecular formula of the C3H5O2C_3H_5O_2, if the gram molecular mass is 146 g/mol?

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Explanation:

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What is the molecular formula of the $C_{3} H_{5} O_{2}$ $C_3H_5O_2$ , if the gram molecular mass is 146 g/mol?