Answer:
How does an organisms DNA determine it's chances of survival:
Organisms with heritable (genetically determined) features that help them survive and reproduce in a particular environment tend to leave more offspring than their peers. If this continues over generations, the heritable features that aid survival and reproduction will become more and more common in the population
How does humans manipulate DNA of organisms to be benefit themselves:
Biotechnology is the use of biological techniques and engineered organisms to make products or plants and animals that have desired traits.
Answer:
![Ca^{+2}=5.13x10^{-3}M\\SO_4^{-2}=0.010 M](https://tex.z-dn.net/?f=Ca%5E%7B%2B2%7D%3D5.13x10%5E%7B-3%7DM%5C%5CSO_4%5E%7B-2%7D%3D0.010%20M)
Explanation:
Hello,
At first, the answer is wrong, consider the following procedure:
- the pKs, leads to a Ks of:
![pKs=-Log(Ks)](https://tex.z-dn.net/?f=pKs%3D-Log%28Ks%29)
![Ks=10^{-4.58}=2.63x10^{-5}](https://tex.z-dn.net/?f=Ks%3D10%5E%7B-4.58%7D%3D2.63x10%5E%7B-5%7D)
- now, stating the equilibrium for the calcium sulfate (whereas x is the change during the equilibrium):
![Ks=[Ca^{+2}]^{eq}[SO_{4}^{-2}]^{eq}\\Ks=[x]^{eq}[x]^{eq}\\Ks=x^{2}\\x=\sqrt{2.63x10^{-5}}\\x=5.13x10^{-3} M](https://tex.z-dn.net/?f=Ks%3D%5BCa%5E%7B%2B2%7D%5D%5E%7Beq%7D%5BSO_%7B4%7D%5E%7B-2%7D%5D%5E%7Beq%7D%5C%5CKs%3D%5Bx%5D%5E%7Beq%7D%5Bx%5D%5E%7Beq%7D%5C%5CKs%3Dx%5E%7B2%7D%5C%5Cx%3D%5Csqrt%7B2.63x10%5E%7B-5%7D%7D%5C%5Cx%3D5.13x10%5E%7B-3%7D%20M)
- x becomes the concentration of calcium ions and one of the contributions for the total concentration of sulfate ions, thus:
![[Ca^{+2}]^{eq}=5.13x10^{-3} M](https://tex.z-dn.net/?f=%5BCa%5E%7B%2B2%7D%5D%5E%7Beq%7D%3D5.13x10%5E%7B-3%7D%20M)
- finally, since the sodium sulfate is totally dissolved, we just simply add its concentration (equal to the sulfate ions yielded by itself) to the outgoing sulfate concentration from the calcium sulfate:
![[SO_4^{-2}]^{total}=5x10^{-3}M+5.13x10^{-3}M\\[SO_4^{-2}]^{total}=0.010 M](https://tex.z-dn.net/?f=%5BSO_4%5E%7B-2%7D%5D%5E%7Btotal%7D%3D5x10%5E%7B-3%7DM%2B5.13x10%5E%7B-3%7DM%5C%5C%5BSO_4%5E%7B-2%7D%5D%5E%7Btotal%7D%3D0.010%20M)
Bibliography:https://books.google.com.co/books?id=LQwyfFc3pXsC&lpg=PA243&ots=zIJN3nSFWE&dq=pKs%20chemistry&pg=PA244#v=onepage&q=pKs%20chemistry&f=false page 243
Best regards!
Solution:
To convert Celsius to Fahrenheit, the formula to be used is (C * 9/5) + 32
So in our given, 28.7 degrees Celsius:
Farenheit = (28.7 * 9/5) + 32
= 51.66 + 32
= 83.66 degrees Fahrenheit
Next, 35.5 degrees Celsius:
Farenheit = (35.5 * 9/5) + 32
= 63.9 + 32
= 95.9 degrees Fahrenheit
So in Fahrenheit, the range would be 83.66 – 95.9 degrees Fahrenheit.
A. would not help and maybe make it harder to get accurate measurements.
b. would make more delta T which will improve its accuracy
c. will also increase delta T.