Question

calculate the mass of 3.011 × 10^24 of water molecule​

Answer 1

Answer:

2.992 x 10^-23 g

Explanation: When calculating the average mass of one molecule, do the following:

Calculate the molar mass of the substance

Divide it by Avogadro's Number

1) Calculate the molar mass.

The molar mass of water is 18.015 g/mol. This was calculated by multiplying the atomic weight of hydrogen (1.008) by two and adding the result to the weight for one oxygen (15.999).

Please remember that you need the molar mass first when trying to find the average mass of one molecule.

2) Divide the substance's molar mass by Avogadro's Number.

( 18.015 g/mol ) / ( 6.022 x 10^23 ) = 2.992 x 10^-23 g

Answer 2

Answer:

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