A buffer with a pH of 9.85 contains Ch3NH2 and CH3NH3Cl in water. What can you conclude about the relative concentrations of CH3NH3Cl in this buffer? For the CH3NH2, pKb=3.36
CH3NH2 > Ch3NH3Cl
CH3NH2 < Ch3NH3Cl
CH3NH2 = Ch3NH3Cl
nothing can be concluded about the relative concentrations of Ch3NH2 and CH3NH3Cl
A buffer with a pH of 9.85 contains Ch3NH2 and CH3NH3Cl in water. What can you conclude about the relative concentratio...
PQ-25. An aqueous buffer solution contains only HCN (PK, = 9.31) and KCN and has a pH of 8.50. What can be concluded about the relative concentrations of HCN and KCN in the buffer? (A) [HCN]> [KCN] (B) [HCN]< [KCN] (C) [HCM] = [KCN] (D) nothing can be concluded about the relative concentrations
Calculate the pH of a buffer solution that is 1.25 M CH3NH2 and 1.00 M CH3NH3Cl. Kb = 8.85 x 10-4 and what would happen after 35.0 mL of 0.45 M HNO3 is added to 250.0 mL of the buffer solution, what would the pH of the solution be after the HNO3(aq) is added?
what can you conclude about the origins of acidic or basic pH when an ionic salt is dissolved in water
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In an insulated container, liquid water is mixed with ice. What can you conclude about the phases present in the container when equilibrium is established?
You are recording signals from a postsynaptic neuron that contains only one type of ionotropic receptor (and no other receptors of any kind). Your goal is to determine the reversal potential for this type of receptor. When you hold the membrane potential at -50 mV and activate these receptors, you observe that this causes IPSCs. Based on this information, what can you conclude about the reversal potential (Erev) for these receptors? (Assume that the ion concentrations inside and outside this...
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The conjugate acid of ethanol amine (HOCH2CH2NH3+) has pKa = 9.50. What can you conclude about a solution of this amine in which [RNH3+)] = 10 x [RNH2]?) Question 9 options: a) pH = 10.50 b) pH = 9.50 c) pH = 8.50 d) None of the above.
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