How many nitrogen atoms are present in calcium nitrate, Ca(NO3)2?
A) 6
B) 3
C) 2
D) 1

Question

How many nitrogen atoms are present in calcium nitrate, Ca(NO3)2? 
A) 6
B) 3
C) 2
D) 1

paki · Answer

hmmm what you say...?

anonymous · Answer

B?

paki · Answer

no

anonymous · Answer

Wait, there would be 1 mole of nitrogen?

paki · Answer

how....?

anonymous · Answer

6,022 x 1023 alots/mole. Calcium nitrate = Ca(NO3)2. There is 1 mole of calcium making 6,022 x 1023 atoms of calcium. There are two moles of nitrate ions and each nitrate ion is made up of 1 mole of nitrogen, oh so there would be 2 moles of nitrogen

anonymous · Answer

I can hardly think straight I've been up all night doing school work

paki · Answer

yeah it's 2 moles... just look at the geometry of the formula, so that you can solve it easily...

paki · Answer

here it's a;so night and time here is 2:05AM...

anonymous · Answer

It's 5 PM here

anonymous · Answer

Are you any good with US History? That's my worst subject and I have 6 days left to finish 8 semesters of classes or else I don't graduate this year @paki

bioepic · Answer

Anybody interested in USABO?

anonymous · Answer

What do you mean? @BioEpic

paki · Answer

@BioEpic  what IS usabo.....?

bioepic · Answer

Usa biology olympiad: extremely competitive exam, top twenty in America... Search it on the internet: https://www.usabo-trc.org/

paki · Answer

@BioEpic  but i am an engineer... :-)

anonymous · Answer

i am pretty sure the answer is B to me it sound better than the rest

anonymous · Answer

No its C.