sider the following data on some weak acids and weak bases: K₁ K₁ 6.8 104 18×107 nitrous acid HNO₂ 4.5×10 pyridine C,H,N 1.7 x 10 name acid hydrofluoric acid HF 1M Nal 1M NaNO₂ IMC₂H₂O NHƯNG formula solution his data to rank the following solutions in order of increasing pH. In other words, select a '1' next to the solution that will have the lowest pH, a 2 next to solution that will have the next lowest pH, and so on. chosen 2 1 4 highest base cho name ammonia NH, formula de

Consider the following data on some weak acids and weak bases: name acetic acid hydrocyanic acid acid solution 0.1 M KCH3CO₂ 0.1 M NaBr 0.1 M NaCN 0.1 M C5H5NHCI Ka formula HCH3CO2 1.8 × 10 HCN 4.9 × 10 Use this data to rank the following solutions in order of increasing pH. In other words, select a '1' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on. X pH - 10 -5 choose one choose one ✓ choose one choose one Ś base K₂ formula C6H5NH₂ 4.3 × 10 -10 -9 1.7×10 ⁹ name aniline pyridine CH-N

The chemical formulae of some acids are listed in the first column of the table below, and in the second column it says whether each acid is strong or weak. Complete the table. List the chemical formula of each species present at concentrations greater than about 10-6 mol/L when about a tenth of a mole of the acid is dissolved in a liter of water. acid HC103 HI H₂PO4 HF strong or weak? strong strong weak weak species present at 10-6 mol/L or greater when dissolved in water П ☐ 0 X 0,0,... S

these are the 3 subparts of a question, please help asap

For a certain acid pK = 6.59. Calculate the pH at which an aqueous solution of this acid would be 0.36% dissociated. Round your a answer to 2 decimal places. pH = X 3

Which of the following acids at 0.1 M concentration has the lowest pH(most acidic) in an aqueous solution? Answer Choices: acetic acid, Ka = 1.8 x 10-5, phosphoric acid, Ka = 7.5 x 10-3, nitrous acid, Ka = 4.5 x 10-4, hydrocyanic acid, Ką = 4.0 x 10-10, -8 hydrogen sulfite ion, Ka = 6.2 x 10°

▼ Part A Calculate the concentrations of NH and NH3 and the pH in a solution prepared by mixing 19.0 g of NaOH and 0.495 L of 1.5 M NH4Cl. Assume that the volume remains constant. Express your answers using two significant figures. Enter your answers numerically separated by a comma. 15. ΑΣΦ [NH ], [NH3] = Submit Part B PH = Submit Request Answer V—| ΑΣΦΑΛΟ Request Answer www. ? Seg ? M

3:21 2- 3C₂²- + 1 2 3 4 CI Complete the balanced chemical reaction for the following weak base with a strong acid. In this case, write the resulting acid and base as its own species in the reaction. NH3(aq) + HCl(aq) (s) Question 1 of 10 O Reset LO 5 6 OH- 7 8 ଇ H H₂O H3O+ ↑ x H₂O Tap here or pull up for additional resources Submit 9 11 (aq) O N

In an aqueous solution of a certain acid the acid is 28.% dissociated and the pH is 1.99. Calculate the acid dissociation constant Kof the acid. Round your answer to 2 significant digits. K = 0 a x10 X Ś

Consider the following data on some weak acids and weak bases: acid base Ka K, name formula name formula -4 hydrofluoric acid HF 6.8 × 10 ethylamine C2H;NH, 6.4 × 10 10 4.9 x 10 8. hydrocyanic acid HCN hydroxylamine HONH, 1.1 x 10 Use this data to rank the following solutions in order of increasing pH. In other words, select a 'l' next to the solution that will have the lowest pH, a '2' next to the solution that will have the next lowest pH, and so on. solution pH 0.1 M HONH3CI choose one 0.1 М KF choose one 0.1 M C2H5NH3Br choose one 0.1 М KBr choose one