Answer
6 x 10$^{26}$ atoms of hydrogen
Work Step by Step
Earlier in chapter 1, we are told that $1u=1.66053886\times10^{-27}kg$
$(1kg)/(1.66053886\times10^{-27}kg)=6\times10^{26}$ H-atoms
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.