How many moles are in 3.98×10^30 atoms of h2so4

I’m unsure why people are complicating matters with Avogadro’s number. You have a number of moles and the question asks a number of moles. There’s no point in converting to an exact number of atoms at all.

1.5 moles of H2SO4 means you have 1.5 moles of this molecule.

The molecule has 7 atoms in it for each molecule.

So if you have 1.5 moles of the molecule, you have 7*1.5 = 10.5 moles of atoms in those molecules.

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: