How many moles are there in 276 grams of ethanol CH3 CH2 OH

6 moles

Explanation:

We'll begin by obtaining the molar mass of ethanol (CH3CH2OH). This is illustrated below:

Molar Mass of CH3CH2OH =

12+(3x1)+12+(2x1)+16+1

= 12+3+12+2+16+1

= 46g/mol

Mass of CH3CH2OH from the question = 276g

Number of mole CH3CH2OH =?

Number of mole = Mass /Molar Mass

Number of mole CH3CH2OH = 276/46

Number of mole CH3CH2OH = 6 moles

Therefore, there are 6 moles in 276g of ethanol(CH3CH2OH)

it is important to conserve water because there is very limited amount of freshwater here on earth and if we are not smart about how we use it we will only be runnning out of our supply faster than neccessarry.

what is the general relationship between a galaxy's distance from earth and its speed?

the answer is:

the farther away a galaxy is from us, the faster it is moving away from us.