How many hydrogen atoms are contained in 0.40 mL of water, given that the density of water is 1 g/ml?

2.676e22 atoms of Hydrogen

Explanation:

Knowing the density of water is 1g/ml, 1(g/ml)*0.4ml=0.4 grams of H2O. Knowing that there are 16 grams of H2O in 1 mole of H2O, we can set up a unit conversion of 0.4 Grams H2O * =

2.676e22 atoms of Hydrogen.

that's just how they are

explanation:

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