This answer would be A) input force/output force
Answer : The solubility of nitrogen in water at an atmospheric pressure will be, 
Explanation :
First we have to calculate the partial pressure of nitrogen.
Formula used :
where,
= partial pressure of nitrogen = ?
= mole fraction of nitrogen = 
= atmospheric pressure = 0.480 atm
Now put all the given values in the above formula, we get :
Now we have to calculate the solubility of nitrogen in water.
Formula used :
where,
= partial pressure of nitrogen = 0.375 atm
= solubility of nitrogen in water = ?
= Henry's constant = 
Now put all the given values in the above formula, we get :
Therefore, the solubility of nitrogen in water at an atmospheric pressure will be,
Answer:
B. Q > K precipitate will form
Explanation:
The reaction is;
Ba(NO3)2(aq) + Na2CO3(aq) ------> BaCO3(s) + 2NaNO3(aq)
Hence the reaction could form a precipitate of BaCO3.
Number of moles of carbonate ions = 50/1000 * 0.10 M = 5 * 10^-3 moles
Number of moles of Barium ions = 20/1000 * 0.10 M = 2 * 10^-3 moles
Total volume after reaction = 20ml + 50ml = 70 ml or 0.07 L
Molarity Barium ions = 5 * 10^-3 moles/ 0.07 L = 0.07 M
Molarity carbonate ions = 2 * 10^-3 moles/ 0.07 L =0.03 M
Q = [Ba^2+] [CO3^2-] = 0.07 * 0.03 = 2.1 * 10^-3
But K = 2.58 × 10
^−
9
We can clearly see that Q>K therefore precipitate will form
Answer:
okay so i hope this helps
Explanation:
In chemistry and physics, the atomic theory explains how our understanding of the atom has changed over time. Atoms were once thought to be the smallest pieces of matter. However, it is now known that atoms are made up of protons, neutrons, and electrons. These subatomic particles are made up of quarks.
