10). The K for KPO, at 25°C is... Kas Acid Name oitens Formula Phosphoric Acid H3PO4...
Phosphoric acid has a formula of H3PO4, and has a Ka1 of 7.5×10–3 , Ka2 of 6.2×10–8 , and Ka3 of 4.2×10–13 at 25 ºC. What is the equilibrium constant for the following reaction at 25°C? HPO42–(aq) + H2O(l) ⇄ H2PO4–(aq) + OH–(aq) A.) 4.2×10–13 B.) 1.3×10–12 C.) 2.4×10–2 D.) 7.5×10–3 E.) 1.6×10–7
a) b) c) d) If the Kb of a weak acid is 2.9 10*, the K, of its conjugate acid must be which of the following? 2.9.10 6.46 7.54 3.4 10- The hydronium ion concentration of a 0.50 mol/L solution of hydrocyanic acid, HCN(aq), is 1.4 x 10-5 mol/L. Use Weak Acid Info 16.1 to answer the following question. The Ka for hydrocyanic acid is: 3.9 x 10-10 1.4 x 10-5 5.0 x 10-2 6.2 x 10-10 An acetic acid-sodium...
What is the pH of a solution of 0.750 M KH2PO4, potassium dihydrogen phosphate? thanks!! At 25 C phosphoric acid, H3PO4, has the following equilibrium constants: H30+ (aq) + H2 PO4 (aq) H30+ (aq) + HP042-(aq) Kal 7.5 x 10-3 Ka2=6.2×10-8 Kas4.2 x 10-13 H, PO4 (aq) + H20(1) H,PO4-(aq) + H2O(1) 근 HPO(a)+H2O()HO (a)P (aq) ▼ Part A At 25 C phosphoric acid, H3PO4, has the following equilibrium constants: H30+ (aq) + H2 PO4 (aq) H30+ (aq) + HP042-(aq)...
Use the data in the tables below. Show appropriate work for numerical calculations. K, values: | HCI HNO3 H2SO4 HSO," НsPO4 HF HNO2 HCOOH strong strong strong 1.3 x 102 7.5 x 10 7.1 x 10 4.5 x 104 1.7 x 10-4 CH3COOH CsHsNH H2CO3 H2PO. NH1 HCN HCO3 - HPO 1.8 x 10-5 5.9 x 10-6 4.2 x 107 6.2 x 10-8 5.6 x 10-10 4.9 x 10-10 4.8 x 10-11 4.8 x 10-13 Ksp values: CaCO3 CaF2 1.2...
need help!! Use the data in the tables below. Show appropriate work for numerical calculations. K, values: HCI HNO) H.SO HSO, HPO HF HNO, HCOOH strong strong strong 13 x 10 7.5 x 10 17.1 x 10 4.5 x 10- 1.7 x 104 CH3COOH CsHsNH" H2CO3 H2PO4 NH, HCN IHCO, HPO4 1.8 x 10 5.9 x 10 4.2 x 10 6.2 x 10 5.6 x 10- 4.9 x 10 4.8 x 10-11 4.8 x 10-D Kip values: 8 CaCO3 CaF24...
Propose buffer components to hold a pH = 5.5 Let the acid have a concentration of 0.12 M. Identity Concentration Acid ? 0.12 M Base ? ? Ksp values: CaCO3 CaF2 Ca(OH)2 Ca3(PO4)2 Fe(OH)2 Fe(OH)3 MgCO3 8.7 x 10-9 4.0 x 10-11 8.0 x 10-6 1.2 x 10-26 1.6 x 10-14 1.1 x 10-36 4.0 x 10-5 Mg(OH)2 AgBr AgaCO3 AgCl Ag2SO4 Zn(OH)2 1.2 x 10-11 7.7 x 10-13 8.1 x 10-12 1.6 x 10-10 1.4 x 10" 1.8 x...
Propose buffer components to hold a pH = 4.0. Let the acid have a concentration of 0.21 M. Identity Concentration Acid ? 0.21 M Base ? ? Ksp values: CaCO3 CaF2 Ca(OH)2 Ca3(PO4)2 Fe(OH)2 Fe(OH)3 MgCO3 8.7 x 10-9 4.0 x 10-11 8.0 x 10-6 1.2 x 10-26 1.6 x 10-14 1.1 x 10-36 4.0 x 10-5 Mg(OH)2 AgBr AgaCO3 AgCl Ag2SO4 Zn(OH)2 1.2 x 10-11 7.7 x 10-13 8.1 x 10-12 1.6 x 10-10 1.4 x 10" 1.8 x...
4. Identify the conjugate acid of S042 A) H:SO4 B) HSQF C) H3SO3 D) H3O+ E) SO32- 5.The OH- concentration in a 7.5 x 10-3 M Ca(OH)2 solution is A) 75 x 10-3M D) 1.0 x 10-?M B) 1.5 x 10-2M. E) 1.0 x 10-14 M. C) 13 x 10-12 M 6. What is the H+ ion concentration in a 4.8 x 10-2M KOH solution? A) 4.8 x 10-2 M D) 4.8 x 10-12 M B) 1.0 x 10-7M E)...
TABLE 15.5 Acid lonization Constants (K) for Some Monoprotic Weak Acids at 25 °C Acid Formula Structural Formula lonization Reaction К. pk, = -log (2) Chlorous acid HCIO H-0-C=0 1.1 x 10-2 1.96 Stronger acids Nitrous acid HNOZ H-O-NO 5.6 x 10-4 HCIO2(aq) + H2011) = H30* (aq) + CO2 (aq) HNO2(aq) + H20(I) = H30+ (aq) + NO2 (aq) HF(aq) + H20(1) = H30* (aq) + F"(aq) 3.25 Hydrofluoric acid HF H-F 6.3 x 10-4 3.20 O Methanoic acid...
TABLE 15.5 Acid lonization Constants (K) for Some Monoprotic Weak Acids at 25 °C Acid Formula Structural Formula lonization Reaction К. pk, = -log (2) Chlorous acid HCIO H-0-C=0 1.1 x 10-2 1.96 Stronger acids Nitrous acid HNOZ H-O-NO 5.6 x 10-4 HCIO2(aq) + H2011) = H30* (aq) + CO2 (aq) HNO2(aq) + H20(I) = H30+ (aq) + NO2 (aq) HF(aq) + H20(1) = H30* (aq) + F"(aq) 3.25 Hydrofluoric acid HF H-F 6.3 x 10-4 3.20 O Methanoic acid...