The mass of NH3 which can be made from 1221g of H2 and excess N2 is 6867g NH3
Explanation:
- NH3 mass is 6867g
- H2 mass is 1221g
- N2 in excess
The primary cycle of fatty acid synthesis produces a four-carbon acyl group. Every following cycle adds a three-carbon malonyl group, which stretches off one molecule of CO2 (one carbon atom) in a condensation response. Thus, the net number of carbon atoms additional by each following cycle is two. For the reason that the first cycle makes a four-carbon chain, and each added cycle extends the chain by two carbon atoms, the second cycle fallouts in a six-carbon chain, the third cycle fallouts in an eight-carbon chain, and so on. And so, the synthesis of the 14-carbon myristic acid necessitates six repetitions.
So what we know:
-Atomic Mass = Protons + Neutrons
-Atomic Number is the number of protons
Magnesium's atomic number is 12, so the natural occurring isotope for magnesium is Mg-12 (12 protons and 12 neutrons). Added up we have an atomic mass of 24 amu. Which means if we added one neutron in Mg-13, our atomic mass would be 25 amu.
We can use the equation:
(amu of isotope 1)x + (amu of isotop 2)(x-1) = Average atomic mass
where isotope 1 is the fractional abundance we're solving for.
Plugged in it looks like this:
24x + 25(1-x) = 24.3
Now to solve for x:
24x + 25 - 25x = 24.3
-x + 25 = 24.3
-x = -.7
x = .7
So in this case, the fractional abundance of Mg-12 would be .7, or 70%.<span />
One: looks to be correct for both answers. Certainly the first one is. The second depends on your other choices. But military use is one.
Two: is correct. Pd has (in this case) an atomic mass of 114 and its number is 46
Three: Even with my slop numbers, 4.98 is the answer (although I get 4.99 but again, my numbers are pretty sloppy).
Four: Slop numbers say 78.3, but 78 is the right answer.
Five: Slop numbers agree with Al2S3. I think that's D
They are all correct. Very Fine Work.
