Please help Calculate the following for a 0.002 M aqueous solution of NH_3 (K_b = 1.75...
Which solution would have the higher pH? 0.10 M NH_3(k_b = 1.8 times 10^-5) 0.10 M NH_4 Cl both would have the same pH. Which solution would have the lower pH? 0.10 M KNO_3 0.10 M Fe (NO_3)_3 both have the same pH.
Calculate the pH of the 0.40 M NH_3/ What is the pH of the after the addition of 10 mL of 1.0 M HCl to 90 mL of the buffer. (K_b for NH_3 = 1.8 times 10)
Calculate the pH of 250.mL of a 0.02 M solution of the salt, aniline hydrochloride. K_b for Aniline is 4.0 X 10^-10
14.7.1 The hydroxide ion concentration, [OH^-], of an aqueous solution of 0.426 M caffeine (a weak base with the formula C_8H_10N_4O_2), K_b = 4.1 Times 10^-4, is:
Consider the following colligative properties of an aqueous glycol (nonvolatile molecule) solution. Is each property lower than, equal to, or higher than that of water? Vapor pressure: ____ Freezing point: _____ Boiling point: _____ What are three factors which control reaction rate? Would you increase or decrease each of the three factors to speed up a chemical reaction rate? a) Factor 1: _____ b) Factor 2: _____ c) Factor 3: _____ For the equilibrium, N_2O_4(g, colorless) rightarrow 2NO_2(g, orange) delta...
10. Calculate [H'], [OH'], pH for a 0.015 M aqueous solution of HCI. 11. Calculate [H'], [OH'], pH for a 0.45 M aqueous solution of NaOH. ヘ
Calculate the pH at 25degreeC of a 0.0053 M solution of a weak base with a K_b of 1.8 TIMES 10^-9 pH
A solution contains 0.0500 M Co^3+ (aq), 0.0310 M S^2- (aq), and 0.95 M NH_3. Cobalt(III) ions in aqueous solutions complex with NH_3 to produce Co(NH_3)_6^3+. (K_f = 5.0 times 10^31) What will be the concentration of Co^3+ (aq) when Co(NH_3)_6^3+ forms? Will CO_2 S_3 precipitate? (K_sp = 4.0 times 10^-21) precipitate forms no precipitate forms
Calculate the pH of each of the following aqueous solutions at 25 °C. (Please help me solve #4 with your work, and check my answers for #1-3, if incorrect please show me why, Thank you) 1) 0.65 M boric acid (B(OH)3, Ka = 7.3 x 10-10) (pH=4.66) 2) 3.15 M ammonia (NH3, Kb = 1.76 x 10-5) (pH= 4.37) 3) 0.82 M benzoic acid (C6H5COOH, Ka = 6.3 x 10-5) (pH=2.14) 4) 0.100 M H3AsO4 (Ka1 = 2.5 x 10-4,...
Part A Part complete Calculate [H3O+] in the following aqueous solution at 25 ∘C : [OH−]= 5.3×10−4 M . Express your answer using two significant figures. -- SubmitPrevious AnswersRequest Answer Part B Part complete Calculate [H3O+] in the following aqueous solution at 25 ∘C : [OH−]= 2.4×10−12 M . Express your answer using two significant figures. -- [H3O+] [ H 3 O + ] = nothing M SubmitPrevious AnswersRequest Answer Part C Part complete Calculate [H3O+] in the following aqueous...