The phosphorous-to-hydrogen mass ratio is 10.2 for a compound. This ratio could correspond to the compound: Chemistry Chapter 5 The phosphorous-to-hydrogen mass ratio is 10.2 for a compound. This ratio could correspond to the compound: A) PH. B) PH2. C) PH3. D) PH6. E) none of the above Answer: C Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+