Chemistry: Aformer high school teacher was discovered making meth, and the dea recently analyzed some confiscated material from a drug bust he was associated with. they found a compound with the empirical formula c17h14o7 that has a molar mass of 990.87 g/mol. what is the value of n (the multiplier) necessary to find the molecular formula?

Explanation:I think the question is not complete...

Aformer high school teacher was discovered making

allytrujillo20oy0dib

10.03.2022

3 is the value of n necessary to find the molecular formula.

Explanation:

The equation used to calculate the valency is :

$n=\frac{\text{molecular mass}}{\text{empirical mass}}$

We are given:

Mass of molecular formula = 990.87 g/mol

Mass of empirical formula of $C_{17}H_{14}O_7$ :

$12 g/mol+17+1 g/mol\times 14+16 g/mol\times 7=330 g/mol$

Putting values in above equation, we get:

$n=\frac{990.87 g/mol}{330 g/mol}=3.00$

3 is the value of n necessary to find the molecular formula.

The molecular formula is : $C_{51}H_{42}O_{21}$

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