A chemist will use a sample of 30 g of ethanol (CH3CH2OH) in an experiment. In one to two sentences, make and justify a claim about the number of moles of ethanol the chemist will use.
The chemist will be using approximately 0.75 moles of ethanol in the experiment, as the molar mass of ethanol is 46 g/mol and 30 g is close to 1 mole of ethanol. This calculation can help in accurately measuring and analyzing the reaction or process being studied.
