How many grams are in 1.2 x 1024 atoms of sodium?

46 g

Explanation:

First we convert 1.2 x 10²⁴ atoms of sodium into moles, using Avogadro's number:

Then we convert 2.0 moles of sodium into grams, using sodium's molar mass:

Thus, there are 46 grams in 1.2x10²⁴ atoms of sodium.

i just got this problem. it's 90.3

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation: