A reaction produces 0.755 mol of H2O. How many molecules of water are produced?

4.55 * 10^23 molecules

Explanation:

This is a conversion problem. We know that one mole has 6.022 *10^23 particles or molecules so we can use this as a conversion factor.

0.755 mol ( 6.022*10^23 molecules/ 1 mol)

=4.55*10^23 molecules

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

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