A solution that is 0.315 M in NaCl and 0.407 M in NH4Cl. pNa=     pCl=     pNH4=     A solution that is 8.73×10−68.73×10−6 M in NaCl and 1.92×10−6 M in CaCl2. pNa=     pCl=     pCa=

What is [H3O+] (in mM) in a solution of 0.291 M CH3CO2H and 0.029 M NaCH3CO2? CH3CO2H(aq) + H2O(l) ⇌ H3O+ (aq) + CH3CO2−(aq)             Ka=1.8×10−5

Find the pHpH of a 0.011 MM solution of HCHO2HCHO2. (The value of KaKa for HCHO2HCHO2 is 1.8×10−41.8×10−4.) Express your answer using two decimal places.

A patient presents itself to the emergency department in a critical condition. The patient’s blood was tested and the concentration of carbonic acid (H2CO3) was found to be 6.8 ×10-8 M    and bicarbonate ion (HCO3-)  2.325 ×10-7 M                                                                              Ka = 4.3 × 10-7                  H2CO3(aq)  ⇌  HCO3-(aq) + H+(aq) Show all calculations including equation(s) used. Calculate the pH of the patients’ blood. Based on your answer would you say the patient is suffering from Acidosis or Alkalosis?

What is the pH of a solution containing 0.10 M cyanide ion, CN1-? CN1- + H2O < === > HCN + OH1-     Kb of CN1- ion = 1.6 x 10-5

Calculate the concentration of all species in a 0.16 M KF solution. K₁ (HF) = 6.3 × 10-4 Express your answer using two significant figures. Enter your answers numerically separated by commas. [K+], [F¯], [HF], [OH¯], [H3O+] = VE ΑΣΦ ? M

Which acid is the weakest? acetic acid CH3COOH (K₂ = 1.8 x 10-5) hydrogen sulfate ion HSO4 (K₂ = 1.2 × 10-2) carbonic acid H₂CO3 (K₂ = 4.3 x 10-7) ammonium ion NH4+ (K₂ = 5.6 × 10-10) hydrocyanic acid HCN (K₂ = 4.9 × 10-10)

Calculate [H₂O+] of the following polyprotic acid solution: 0.330 M H3PO4. (K₁1=7.5 x 10³, K-6.2 x 10-8, and Kas=4.2 x 10-¹3) Express your answer in molarity to two significant figures. 1961 ΑΣΦ [H₁0¹] = Submit Part B Complete previous part(s) Part C Request Answer [H₂O¹]- Submit Calculate (H₂O) of the following polyprotic acid solution: 0.380 M H₂C₂O₁. (K₁-6.0 x 10-2 and Ka-6.1 × 10 ) Express your answer in molarity to two significant figures. IVE ΑΣΦΑ ? Request Answer M ? M