Try this;
Google "osteoporosis" and click in the first reference, [PLAIN]www.FORE.org[/URL]
Click on "treatment", then "eat right", then "calcium rich". That should take you to some recipies. Good luck.
Steve
Hey Zappa;
Go to your favorite search engine, type in "Sodium", choose a site, and see what it says about when Sodium is added to water. Good luck.
Best of health.
Steve
Think your two calculations should have the units of "ions/gm", not just "ions", after you cancel both "mole" units.
This and chemisttree's info should lead you to the correct answer.
Good luck.
Steve
"... and the contents of the beaker were dried."
Maybe I'm wrong, but that statement doesn't say "heated", so perhaps the water of hydration wasn't driven off.
Can anyone back me up or explain my error here?
Gracias.
Best of luck.
Steve
Think you are correct. The three 3p3 electrons of P should be bonded to the three Cls, each one forming single bonds. That leaves the pair of 3s2 electons unshared. Haven't even looked at the other choices, since I feel PCl3 is the one.
If incorrect, please someone let me know.
Best of...
Maybe I'm wrong, but I'd check your last step (multiplication & division) just before determining V2. Think you might be off by a factor of 10.
I used the combined gas law:
P1V1/T1 = P2V2/T2 and ended up with 1.13L
Also, from the original conditions, isn't the P increasing and the T...
Go to your favorite search engine and type in "Golgi apparatus". You will find many references, explaining its functions. Should be easy from there on.
Best of luck.
Steve
Not sure the ratio of 3:5 bonds for P. Cannot comment on your compound. There are many, many more intelligent people at this site than I. Hybridization of orbitals might come into play here. Perhaps someone can correct/add to what has been said so far?
I have a possible structure with the P...