Near room temperature the density ofwater is 1 g/ml and the densityof ethanol is 0.789 g/ml . what volume of ethanol contains the same number ofmolecules as are present in 175 ml of h2o?

566.7 ml

Explanation:-

Density of the water=

volume of water = 175 ml

Putting in the values we get:

mass of water = 175 g

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP and contains avogadro's number of particles.

tex]\text{Number of moles of water}=\frac{175g}{18g/mol}=9.72moles[/tex]

Thus 9.72 moles of ethanol are required.

Mass of ethanol=

Density of ethanol=

volume of ethanol= ?

Putting in the values we get:

Thus volume of ethanol that contains the same number of molecules as are present in 175 ml of water is 566.7 ml.

the correct answer is a

because u need two or more forms of the same element that contain equal numbers of protons but different numbers of neutrons in their nuclei to form isotopes.

so since they all have the same shape? i mean maybe because m& m and reeses are both chocolates