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You are watching: How many moles are there in 3.00 g of ethanol, ch3ch2oh?


The molecule formula that ethanol is CH3CH2OH. Each molecule that ethanol has 2 atom of carbon. The molar fixed of ethanol is 2*12 + 6*1 + 16 = 24 +6 +16 = 46 g/mole

as each mole that ethanol weighs 46 g, 4.56 g that ethanol is identical to 4.56/46...

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The molecular formula the ethanol is CH3CH2OH. Every molecule of ethanol has actually 2 atoms of carbon. The molar mass of ethanol is 2*12 + 6*1 + 16 = 24 +6 +16 = 46 g/mole

As each mole the ethanol weighs 46 g, 4.56 g that ethanol is indistinguishable to 4.56/46 = 0.0991 moles.

Each mole of ethanol has 2 mole of carbon atoms. 0.0991 moles of ethanol has actually 0.1982 moles of carbon atoms.

As one mole is in the SI system refers come 6.022141*10^23 units, 0.1982 mole is equal to 1.193*10^23 units. Here the variety of units is the variety of carbon atoms.

The required number of carbon atom in 4.56 grams that ethanol is 1.193*10^23.

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