As this is an example of an acidic buffer, so taking an assumption of Ka value by looking at the pH value provided, which tells us that this is a weak acid and the weak acids have Ka values <10^-5. So, using the Henderson-Hasselbach equation for acidic buffers to solve for the base concentration, we see the solution goes by following steps:
Propose buffer components to hold a pH = 5.5 Let the acid have a concentration of...
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...
Propose buffer components to hold a pH = 10.8 Let the base have a concentration of 0.35 M. Identity Concentration Acid ? ? Base ? 0.35 M 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...
please show work Use the data in the tables below. Show appropriate work for numerical calculations. K. values: HCI HNO3 H2SO4 HSO4"- H3PO4 HF HNO2 HCOOH strong strong strong 1.3 x 10-2 7.5 x 10 7.1 x 10+ 4.5 x 10-4 1.7 x 10+ CH3COOH CsH NH H2CO3 H2PO4 NH4+ 1.8 x 105 5.9 x 10-6 4.2 x 10-7 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 HCO3 HPO42- Ksp values: 8 CaCO3...
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...
4) (24 points) What is the solubility of Fe(OH)s (iron(III) hydroxide)... a) ...pure water? b) ...0.036 M Fe(NO3)3? Ka values: HCI HNO3 H2SO4 HSOF 113x102 HsPO7.5 x 103 HF HNO2 strong CH3COOH 1.8 x 10 CHNHF 5.9 x 106 HCO 4.2x 10 H2CO3 strong HaPO 62x 10 H2PO4 7.1 x 104 4.5 x 1 HCN HCO3 HPO4 4.9 x 10 48 x 101 1.7 x 10" HCOOH Ksp values: Mg(OH)212x 10 | AgBr _ 17,7 x10.TS- і I 8.7 x...
Strong Acids and [H'] (and pH) The pH of a strong acid is the concentration of the strong acid. 1.OM HCI makes 1.OM H. Except H2SO4. Its pH is a little lower than that because: H2SO4(aq) H+ (aq) + HS07 (aq) Strong acids generally have K.>>1. We assume K = . The HSO, is a weak acid: HSO2 (aq) + H+ (aq) + S0 - Ka = 1.2 * 10-2 Weak Acids and [H+] (and pH) These are weak electrolytes....
1- Solid sodium hydroxide is slowly added to 175 mL of a 0.208 M calcium bromide solution until the concentration of hydroxide ion is 0.0306 M. The mass of calcium ion remaining in solution is grams. 2- Solid potassium hydroxide is slowly added to 75.0 mL of a 0.245 M manganese(II) chloride solution until the concentration of hydroxide ion is 0.0131 M. The percent of manganese(II) ion remaining in solution is %. if you need it Table of Solubility Product Constants...
1.Solid sodium hydroxide is slowly added to 75.0 mL of a manganese(II) iodide solution until the concentration of hydroxide ion is 0.0501 M. The maximum amount of manganese(II) ion remaining in solution is M 2.Solid magnesium acetate is slowly added to 150 mL of a 0.151 M sodium hydroxide solution until the concentration of magnesium ion is 0.0433 M. The percent of hydroxide ion remaining in solution is % Solubility Product Constants (Ksp at 25 oC) Type Formula Ksp Solubility...
An acidic solution is 2 mM in each of the following metal ions: Zn2+, Cu2+, Co2+, Ca2+. a) Which of the metals would precipitate as their hydroxides at pH = 6.00? (Select all that apply. See theappendix.) -zinc -copper -cobalt -calcium b) Which of the metals would precipitate as their hydroxides at pH = 8.00? -zinc -copper -cobalt -calcium c) At what pH do the metal hydroxides begin to participate? Zn(OH)2 ____ Cu(OH)2 ____ Co(OH)2 ____ Ca(OH)2 ____ Substance Ksp...