Hey! Can you please help me with the following two questions I am highly confused and I don't really understand them at all. Thank you!! 16, Please help me with them, we have a test this thursday and problems that are similar are supposed to be on there. Thank you so much!!!
1.The pH of a 0.14-M solution of
phthalic acid
(H2C8H4O4)
is measured to be 1.91. Use this information to
determine a value of Ka for phthalic
acid.
2.What is the pH of a 0.142 M aqueous solution
of sodium acetate,
NaCH3COO?
(Ka for CH3COOH =
1.8×10-5)
pH =______
Hey! Can you please help me with the following two questions I am highly confused and...
Hey! Can you please help me with the following two questions I am highly confused and I don't really understand them at all. Thank you!! 16, Please help me with them, we have a test this thursday and problems that are similar are supposed to be on there. Thank you so much!!! 1.Calculate the pH of a 0.119 M aqueous solution of hydroxylamine (NH2OH, Kb = 9.1×10-9) and the equilibrium concentrations of the weak base and its conjugate acid. pH...
Hey! Can you please help me with the following two questions I am highly confused and I don't really understand them at all. Thank you!! 16, Please help me with them, we have a test this thursday and problems that are similar are supposed to be on there. Thank you so much!!! 1.The hydroxide ion concentration in an aqueous solution at 25°C is 1.8×10-2 M. The hydronium ion concentration is ______ M. The pH of this solution is_______ . The...
Hey guys, I am having a lot of trouble with my homework. Could you please help? I thumbs up anyone who gives a thorough explanation and shows the work! I really need to understand these concepts! Thank you! 1) At 25 °C, the Ka for formic acid (HCO2H) is 1.8 x 10-4. What is the pH of a 0.10 M aqueous solution of lithium formate (LiHCO2)? 2) What is the pH (aq., 25 °C) of this solution: adding 1.64 grams...
Hey guys, I am having a lot of trouble with my homework. Could you please help? I thumbs up anyone who gives a thorough explanation and shows the work! I really need to understand these concepts! Thanks! 1) At 25 °C, the Ka for formic acid (HCO2H) is 1.8 x 10-4. What is the pH of a 0.10 M aqueous solution of lithium formate (LiHCO2)? 2) What is the pH (aq., 25 °C) of this solution: adding 1.64 grams of...
For the following dissociation of acetic acid, Ka = 1.760 x 10-5: CH3COOH + H2O ? CH3COO- + H3O+ Sodium acetate completely dissociates in solution according to the following reaction: NaCH3COO ? Na+ + CH3COO- A solution was prepared which contains CH3COOH at a pre-equilibrium concentration of 0.05782 M and NaCH3COO at a pre-equilibrium concentration of 0.04991 M. I know all answers, just do not know how to find them. What is the equilibrium concentration of H3O+? (Answer: 0.00002037) What...
Hey guys, I am having a lot of trouble with my homework. Could you please help? I thumbs up anyone who gives a thorough explanation and shows the work! I really need to understand these concepts! Thank you very much! 1) Z- is a weak base. An 0.350 M aqueous solution of NaZ is prepared. The pH of the solution was 8.93 at 25.0°C. The Kb of Z- is: 2) The base-ionization constant of ethylamine (C2H5NH2) is 6.4 x 10-4...
Hey guys, I am having a lot of trouble with my homework. Could you please help? I thumbs up anyone who gives a thorough explanation and shows the work! I really need to understand these concepts! Thank you! 1) Z- is a weak base. An 0.350 M aqueous solution of NaZ is prepared. The pH of the solution was 8.93 at 25.0°C. The Kb of Z- is: 2) The base-ionization constant of ethylamine (C2H5NH2) is 6.4 x 10-4 at 25.0...
Hello! Can someone help me with these questions? Thank you! 1 Answer the following questions (a) The following substances are either Brønsted-Lowry acid or base Write the equation for the acid of base reacting with water. CO2?"(aq) + H2O(lig) - HNO3(aq) + H2O(lig) = CH3NH; (aq) + H2O(lig) = (b) Write a reaction for the conjugate base of H,PO, (aq) reacting with the conjugate acid of NH3(aq) (c) What is the pH of 0.00023 M HBr? (d) A precisely done...
Hey guys, I am having a lot of trouble with my homework. Could you please help? I thumbs up anyone who gives a thorough explanation and shows the work! I really need to understand these concepts! Thank you! 1) Using the data in the table below, which conjugate acid is the weakest acid, given that all solutions (aq., 25 °C) are 0.200 M? Explain your choice! Base Kb CIO- 3.3 x 10-7 CO3-2 1.8 x 10-4 HS- 1.8 x 10-7...
Hey guys, I am having a lot of trouble with my homework. Could you please help? I thumbs up anyone who gives a thorough explanation and shows the work! I really need to understand these concepts! Thank you! 1) At 25 °C, the pH of a 0.15 M aqueous solution of CsZ (the cesium salt of HZ) is 10.70. What is the Ka for HZ? 2) Calculate the pH of 0.586 M anilinium hydrochloride (C6H5NH3CI) solution in water at 25...