Answer:
C. Switch 4 and 5
Explanation:
just took the test on edge 2020 & got a 100%
Answer:
We need 8.11 grams of glucose for this solution
Explanation:
Step 1: Data given
Molarity of the glucose solution = 0.300 M
Total volume = 0.150 L
The molecular weight of glucose = 180.16 g/mol
Step 2: Calculate moles of glucose in the solution
Moles glucose = molarity solution * volume
Moles glucose = 0.300 M * 0.150 L
Moles glucose = 0.045 moles glucose
Step 3: Calculate mass of glucose
MAss glucose = moles glucose* molecular weight of glucose
MAss glucose = 0.045 moles * 180.16 g/mol
MAss glucose = 8.11 grams
We need 8.11 grams of glucose for this solution
Explanation:
The relation between
is given by :
![K_w=K_a\times K_b](https://tex.z-dn.net/?f=K_w%3DK_a%5Ctimes%20K_b)
Where :
= Ionic prodcut of water
The value of the first ionization constant of sodium sulfite = ![K_{a1}=1.4\times 10^{-2}](https://tex.z-dn.net/?f=K_%7Ba1%7D%3D1.4%5Ctimes%2010%5E%7B-2%7D)
The value of
:
![1\times 10^{-14}=1.4\times 10^{-2}\times K_{b1}](https://tex.z-dn.net/?f=1%5Ctimes%2010%5E%7B-14%7D%3D1.4%5Ctimes%2010%5E%7B-2%7D%5Ctimes%20K_%7Bb1%7D)
![K_{b1}=\frac{1\times 10^{-14}}{1.4\times 10^{-2}}=7.1\times 10^{-13}](https://tex.z-dn.net/?f=K_%7Bb1%7D%3D%5Cfrac%7B1%5Ctimes%2010%5E%7B-14%7D%7D%7B1.4%5Ctimes%2010%5E%7B-2%7D%7D%3D7.1%5Ctimes%2010%5E%7B-13%7D)
The value of the second ionization constant of sodium sulfite = ![K_{a2}=6.3\times 10^{-8}](https://tex.z-dn.net/?f=K_%7Ba2%7D%3D6.3%5Ctimes%2010%5E%7B-8%7D)
The value of
:
![1\times 10^{-14}=6.3\times 10^{-8}\times K_{b1}](https://tex.z-dn.net/?f=1%5Ctimes%2010%5E%7B-14%7D%3D6.3%5Ctimes%2010%5E%7B-8%7D%5Ctimes%20K_%7Bb1%7D)
![K_{b1}=\frac{1\times 10^{-14}}{6.3\times 10^{-8}}=1.6\times 10^{-7}](https://tex.z-dn.net/?f=K_%7Bb1%7D%3D%5Cfrac%7B1%5Ctimes%2010%5E%7B-14%7D%7D%7B6.3%5Ctimes%2010%5E%7B-8%7D%7D%3D1.6%5Ctimes%2010%5E%7B-7%7D)
Answer:
Project scope statement?
Explanation:
it's good one just do research on it
The hills and valleys decrease the height and speed of the ride. This means that the graph has a negative correlation.
By the way, I think you may have plotted your points incorrectly. The directions said to connect them all with a smooth line or curve.
Also, this is not high school chemistry. This is more likely to be elementary school science. Just make sure that you put your questions in the correct categories next time! :)