What is the mass of 0.20 mole of C₂H6O (ethanol)?

Chemistry

1 answer:

lesya [120]1 year ago

6 0

Answer:

9.2-g of ethanol

Explanation:

The question is asking for us to solve for the mass of ethanol given the moles of it.

We can do this by going from mol -> grams using the <u>molar mass of ethanol</u> (46.068g).

Start off with the moles given (0.20mol) and multiply it by the molar mass of ethanol (46.068g).

This would give the mass of 9.214-g, but since our question has only 2 significant figures, round off your final answer to the same number of sig. figs.

So your final answer would be 9.2-g of ethanol.

***Molar mass is calculated by adding the masses of each element (found in periodic table) by how many times they are in the molecules.

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nydimaria [60]

Answer : The correct option is, +91 kJ/mole

Solution :

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