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2 years ago

How do you do empirical formula

Chemistry

1 answer:

mihalych1998 [28]2 years ago

7 0

Answer:

Explanation:

Step 1: Obtain the mass of each element present in grams. Element % = mass in g = m.

Step 2: Determine the number of moles of each type of atom present. ...

Step 3: Divide the number of moles of each element by the smallest number of moles. ...

Step 4: Convert numbers to whole numbers.

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a sample of compound determined to contain 1.71 g C and 0.287 g H. The corresponding empirical formula is

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Answer: The empirical formula is $CH_2$ .

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Mass of C = 1.71 g

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Moles of C = $\frac{\text{ given mass of C}}{\text{ molar mass of C}}= \frac{1.71g}{12g/mole}=0.142moles$

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