Indicate the effect each stress will have on the following equilibrium reason: N

Question

Indicate the effect each stress will have on the following equilibrium reason: N_2(g) + 2O2(g) + Heat doubleheadarrow 2NO_2(g) a) remove NO_2_____ b) increase temperature____ A 25.0 mL sample of HCI is neutralized by 26.5 mL of 0.155 M NaOH. Calculate the molarity of the HCI solution. HCI + NaOH rightarrow NaCI + H_2O True or False from text (T or F) The primary blood buffer system is the carbonic acid/hydrogen carbonate ion buffer system. (T or F) The kidneys play a major role in regulating hydrogen carbonate ion concentrations in the blood. (T or F) Lower than normal levels of carbon dioxide in the blood can cause respiratory acidosis. (T or F) lower than normal levels of hydrogen carbonate ion in the blood can cause metabolic acidosis.

Explanation / Answer

Q21.

a) removing NO2, a product, will shift toward even more produciton of NO2, so the equilibrium is counterbalanced

b)

this requires heat to form product, an increase of heat will NOT favour products, the heat will be avoided by reacting reverse

Q22.

mmol of base = MV = 26.5*0.155 = 4.1075 mmol of OH-

we need

1:1 ratio so

4.1075 mmol of H+

[HCl] = mmol of H+/ Vacid = 4.1075 / (25) = 0.1643

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