How many moles of carbon are in 1.271 grams of ethanol?

Answer 1

For this you need the atomic (molecular) mass of C2H5OH. Take the number of grams and divide it by the Atomic Mass. Multiply by one mole for units to cancel. C2H5OH= 46.1 grams

1.271 grams C2H5OH / (46.1 grams) = .0276 moles C2H5OH

Answer 2

To determine the number of moles of carbon in ethanol (C2H5OH), we first calculate the molar mass of carbon in ethanol: 12 g/mol (from the Periodic Table). Next, we find the number of moles of carbon in 1.271 grams by dividing the mass by the molar mass: 1.271 g / 12 g/mol ≈ 0.106 moles of carbon.