Answer:
The equilibrium concentration of water vapor is 0.0125 M.
Explanation:
The concentration of ethene at an equilibrium = ![[C_2H_4]=0.015M](https://tex.z-dn.net/?f=%5BC_2H_4%5D%3D0.015M)
The concentration of water vapor at an equilibrium = ![[H_2O]=?](https://tex.z-dn.net/?f=%5BH_2O%5D%3D%3F)
The concentration of ethanol at an equilibrium = ![[C_2H_5OH]=1.69 M](https://tex.z-dn.net/?f=%5BC_2H_5OH%5D%3D1.69%20M)
the equilibrium constant of the reaction, 
The expression of an equilibrium constant will be written as:
![K_c=\frac{[C_2H_5OH]}{[C_2H_4][H_2O]}](https://tex.z-dn.net/?f=K_c%3D%5Cfrac%7B%5BC_2H_5OH%5D%7D%7B%5BC_2H_4%5D%5BH_2O%5D%7D)
![9.0\times 10^3=\frac{1.69 M}{0.015 M\times [H_2O]}](https://tex.z-dn.net/?f=9.0%5Ctimes%2010%5E3%3D%5Cfrac%7B1.69%20M%7D%7B0.015%20M%5Ctimes%20%5BH_2O%5D%7D)
![[H_2O]=\frac{1.69 M}{0.015 M\times 9\timers 10^3}=0.0125 M](https://tex.z-dn.net/?f=%5BH_2O%5D%3D%5Cfrac%7B1.69%20M%7D%7B0.015%20M%5Ctimes%209%5Ctimers%2010%5E3%7D%3D0.0125%20M)
The equilibrium concentration of water vapor is 0.0125 M.
Hydrogen gas(H2) has a molar mass of 2 g. Molar mass of a substance is defined as the mass of 1 mole of that substance. And by 1 mole it is meant a collection of 6.022*10^23 particles of that substance.
So number of moles of H2 are 0.5 in this case. And thus it means there are (6.022*10^23)*0.5 particles( here they are molecules) in 1g of H2.
Answer is: <span>lumps os sugar dissolving in water.
Sugar has very good solubility in water and it dissolves readily, which is </span><span>example of a physical change.
</span>Gibbs free energy (G) determines if reaction will proceed
spontaneously, if ΔG is negative, reaction is spontaneous <span>(ΔG = ΔH - T·ΔS).
</span>In other examples, reactions are spontaneous in reverse way, for example spontaneous is forming sodium chlorine from sodium metal and chlorine gas, but not sodium chloride forming sodium metal and chlorine gas, because a lot of energy is needed for that reaction.
Hello there what is the question?
Answer:
i. Sobolo is a Ghanian drink that is produced from red hibiscus flower that has an average pH of 6.7
It contains cyanidin and anthocyanins, which is a red pigment that is red in an acidic medium and changes green when introduced in a basic medium that has a high pH
The pH at the rectum of the digestive system = 5 to 8 (Slightly basic)
Therefore, what made the stool of Akosua green is that the sobolo drink changes to green in basic solution
ii. The stool which appeared green because she took sobolo turn into bright red upon mixing with the acidic WC water because of the presence of anthocyanins in sobolo, it turns red in an acidic medium
iii. Sobolo which turns green, or blue in a basic medium and red in an acidic medium can be used as a litmus solution to test the pH of a given substance
Explanation:
Sobolo or soobolo in Ghana is a name for the Hibiscus tea or tisane, which is made from calyces of the hibiscus plant, and has a sour (tangy) taste and appears bright red in color
