Cmoving Teaclants and products CD Choices 1 and 3 QUESTION 3 Ke for the dissocia

Question

Cmoving Teaclants and products CD Choices 1 and 3 QUESTION 3 Ke for the dissociation of pure water into protons (H*) and hydroxide ions (OH) is equal to 1.00 x 10-14 At equilbrium, pure water contains mostly undissociated water molecules O contains a nearly equimolar mixture of water molecules, protons and hydroxide ions contains mostly protons and hydroxide ions O contains no protons or hydroxide ions QUESTION 4 The decomposition of NH4HS is endothermic. NH4HS(s) > NH3(0)+ H2S(g) Which change below would result in the formation of more H2S(g)? A decrease in the volume of the reaction vessel at constant temperature. An increase in the amount of NH4H(s) in the reaction vessel O Increasing the temperature. O All of the above. Click Save and Submit to save and submit. Click Save All Answers to save all answers.

Explanation / Answer

3)

H2O ............> H+ + OH-

Kc for water = 1.0 * 10^-14 <<<<<<<1

so reactant (H2O) favored. That means there are mostly H2O molecule.

so answer is contains mostly undissociated water molecules.

4)

this is endothermic reaction and H2S is one of the product molecules.

In the forward reaction volume increases.

NH4HS is the reactant.

so answer is All of the above.

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