Answer:
The ration of molar concentration is "2.5".
Explanation:
The given values are:
Average density of salt water,
= ![1.03 \ g/cm^3](https://tex.z-dn.net/?f=1.03%20%5C%20g%2Fcm%5E3)
Net pressure,
= ![2.00 \ atm](https://tex.z-dn.net/?f=2.00%20%5C%20atm)
Increase in pressure,
= ![1.00 \ atm](https://tex.z-dn.net/?f=1.00%20%5C%20atm)
Now,
The under water pressure will be:
= ![\frac{15 \ m}{10}\times 1 \ atm +1 \ atm](https://tex.z-dn.net/?f=%5Cfrac%7B15%20%5C%20m%7D%7B10%7D%5Ctimes%201%20%5C%20atm%20%2B1%20%5C%20atm)
= ![1.5\times 1+1](https://tex.z-dn.net/?f=1.5%5Ctimes%201%2B1)
= ![1.5+1](https://tex.z-dn.net/?f=1.5%2B1)
= ![2.5 \ atm](https://tex.z-dn.net/?f=2.5%20%5C%20atm)
hence,
The ratio will be:
= ![\frac{(\frac{n}{V})_{15m} }{(\frac{n}{V})_{surface} }](https://tex.z-dn.net/?f=%5Cfrac%7B%28%5Cfrac%7Bn%7D%7BV%7D%29_%7B15m%7D%20%7D%7B%28%5Cfrac%7Bn%7D%7BV%7D%29_%7Bsurface%7D%20%7D)
or,
= ![\frac{P}{P_s}](https://tex.z-dn.net/?f=%5Cfrac%7BP%7D%7BP_s%7D)
= ![\frac{2.5}{1}](https://tex.z-dn.net/?f=%5Cfrac%7B2.5%7D%7B1%7D)
= ![2.5](https://tex.z-dn.net/?f=2.5)
the heat of reaction for a chemical reaction
Answer:
1.750×10^-6 g
Explanation:
we know n is 10^-9. all you have to do is to replace n with 10^-9.
so the answer is
1.750×10^3×10^-9 g
which is equal to 1.750×10^-6 g
if anything is unclear, ask freely.
Half reaction :
Oxidation
Cu ⇒ Cu²⁺ + 2e⁻
Reduction
2Ag⁺+ 2e⁻ ⇒2Ag
<h3>Further explanation</h3>
Given
Reaction
Cu+2AgNO₃⇒Cu(NO₃)₂+2Ag
Required
Oxidation and reduction half-reactions
Solution
Oxidation is an increase in oxidation number, while reduction is a decrease in oxidation number.
Cu ⇒ Cu²⁺ + 2e⁻
0 to +2
2Ag⁺+ 2e⁻ ⇒2Ag
+1 to 0