Calculate the equilibrium constant at 25°C for the reaction of methane with water to form carbon dioxide and hydrogen. The data refer to 25°C.
CH4(9) + 2H20(9) = CO2(g) + 4H2(9)
Substance:
AH (kJ/mol)
AGf(kJ/mol)
S (J/K mol):
CH4(g)
-74.87
-50.81
186.1
H2019)
-241.8
-228.6
188.8
CO2(9)
-393.5
-394.4
213.7
H219)
0
0
130.7

What element breaks down into yttrium-90?

For the following dehydrohalogenation (e2) reaction, draw the zaitsev product(s) resulting from elimination involving c3–c4 (i.e., the carbon atoms depicted with stereobonds). show the product stereochemistry clearly. if there is more than one organic product, both products may be drawn in the same box. ignore elimination involving c3 or c4 and any carbon atom other than c4 or c3.

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. p k a1 p k a2 1.30 6.70 calculate the ph for each of the points in the titration of 50.0 ml of 1.5 m h3po3(aq) 1.5 m h 3 po 3 ( aq ) with 1.5 m koh(aq). 1.5 m koh ( aq ) .