Homework Answers
Add Answer to:
24 and 25 please
.a3 24. The acid-dissociation constants of sulfurous acid (H,SO,) are Kai1.7 x...
25) The acid-dissociation constants of phosphoric acid (H2PO4) are KZ1 = 7.5 x 10-3, K22= 6.2...
25) The acid-dissociation constants of phosphoric acid (H2PO4) are KZ1 = 7.5 x 10-3, K22= 6.2 x 10-8, and K 3 = 4.2 x 10-13 at 25.0°C. What is the pH of a 2.00 M aqueous solution of phosphoric acid? 26) Zº is a weak base. An 0.350 M aqueous solution of NaZ is prepared. The pH of the solution was 8.93 at 25.0°C. The Ky of Zº is:
Q(13) A diprotic acid has two dissociation constants Kia for the first proton and Kzn for...
Q(13) A diprotic acid has two dissociation constants Kia for the first proton and Kzn for the second proton. Which is the relationship between the two Ka? A) K1a>K2a B) K1a<K2 C) K12=K2a D) K10<< K2a E) It cannot be determined Q(14) A 1.25 M solution of the weak acid HA is 9.2% dissociated. What is the pH of the solution? A) 0.64 B) 0.94 C) 1.13 D) 2.16 E) None of these choices is correct. Q(15) What is the...
41-60 CSa 21 Carbon disultide 22 Dinitrogen monoxide cC l4 SaBrs 23 Carbon tetrachloride 24 Trisulfur...
41-60
CSa 21 Carbon disultide 22 Dinitrogen monoxide cC l4 SaBrs 23 Carbon tetrachloride 24 Trisulfur pentabromide 25 Hydroarsenic acid 26 CaBrz ZnsDu Cr(NDSe AUCH COD BasDs KCI Fo (Mn Dua HF HDF (NHa aN Co.(CIDYa Bacla Ph(CH CD Calcium bromide 27 Zinc sulfate 28 Chromium (I) nitrate 29 Aluminum acetate 30 Barium sulfite 31 Potassium chloride 32 Iron () permanganate 33 Hydrofluoric acid 34 Fluorous acid 35 Ammonium nitride 36 Cobalt () hypochlorite 37 Barium chloride 38 Lead ()...
6) At 25 C, the K, for formic acid (HCO2H) is 1.8 x 10-4. What is...
6) At 25 C, the K, for formic acid (HCO2H) is 1.8 x 10-4. What is the pH of a 0.10 M aqueous solution of lithium formate (LiHCO2)? 7) What is the pH (aq., 25 °C) of this solution: adding 1.64 grams of sodium acetate to give 200.0 ml solution at 25.0°C? The K, at 25.0°C for acetic acid is 1.8 x 10-5.
Please I need help on this. I'm so lost 1. Acetic acid (H)CO2H) has k, =...
Please I need help on this. I'm so lost
1. Acetic acid (H)CO2H) has k, = 1.8 x 10- and acetate (H:C:01") has ks = 5.6 x 10-10. (a) Write balanced chemical equilibrium equations (with physical states) for acid dissociation of acetic acid and base hydrolysis of acetate ion. (b) Write K, and equilibrium constant expressions for the above reactions. (c) Use your expressions from part b to show that Kx. = 1.0 x 10-* = [H,O'][OH). 2. For each...
Name Chem 110 Oct 15, 2019 Write the formulas from the names of compounds 1. sulfur...
Name Chem 110 Oct 15, 2019 Write the formulas from the names of compounds 1. sulfur dioxide 2. manganese (IV) oxide 3. sodium thiocyanate N aSON 4. lithium phosphate 5. nickel (II) nitrate Ni (NO2)2 6. ammonium chloride 7. potassium chlorate ka 8. beryllium periodate 9. cadmium chromate Cd Croa 10. sodium permanganate 11. iron (II) hydroxide Fe(OH)2 12. trinitrogen pentoxide 13. strontium nitride SraN₂ 14. magnesium bromate 15. sodium thiosulfate Na.S.O. 16. chlorous acid 17. sodium hypobromite Brno 18....
4. Using Table 15B-4, indicate the stronger acid in each pair. a. HI, H, SO b....
4. Using Table 15B-4, indicate the stronger acid in each pair. a. HI, H, SO b. HF HCN c. H2O2, HCHO, d. H_BO4, H3PO4 ssholds as e. HCl, HClO ahle 158-4 Relative Strengths of Some Acids and Bases Acid K very large very large very large very large very large very large Perchloric acid Hydriodic acid Hydrobromic acid Hydrochloric acid Sulfuric acid Nitric acid Sulfurous acid Hydrogen sulfate ion Phosphoric acid Hydrofluoric acid Formic acid Acetic acid Carbonic acid Hypochlorous...
please help Description Balance Equation states on the prodeets) I. Aqueous sodium sulfate is placed in...
please help
Description Balance Equation states on the prodeets) I. Aqueous sodium sulfate is placed in a beaker containing aqueous plumbous acetate 2.Butanol (CH,OH) gas burns Dovble Re ingle 3. Aqueous lithium chloride is placed LiClca) AgNsLNAgclcDisa in a beaker containing aqueous silver nitrate 4. Aquous nickel ID sulfate is placed in a beaker containing reuchen magnesium metal 5. Aqueous calcium hydroxide is placed in an Erlenmeyer fnask reuction containing nitric acid 6 Perchloric acid is added to a beaker...
Solubility Product Constants (Ksp at 25 °C) Type Formula Кsp Bromides PbBr2 6.3 x 10-6 AgBr...
Solubility Product Constants (Ksp at 25 °C) Type Formula Кsp Bromides PbBr2 6.3 x 10-6 AgBr 3.3 * 10-13 Carbonates BaCO3 8.1 x 10-9 CaCO3 3.8 x 10-9 COCO3 8.0 × 10-13 CuCO3 2.5 10-10 FeCO3 3.5 x 10-11 PbCO3 1.5 10-13 MgCO3 4.0 x 10-5 MnCO3 1.8 10-11 NiCO3 6.6 x 10-9 Ag2CO3 8.1 x 10-12 ZnCO3 1.5 x 10-11 Chlorides PbCl2 1.7 x 10-5 AgC1 1.8 10-10 Chromates BaCrO4 2.0 x 10-10 CaCrO4 7.1 x 10-4 PbCr04 1.8...
Please help with solving Question 1 (A-C) Thank you! Unless otherwise specified in the problem, you...
Please help with solving Question 1 (A-C) Thank you!
Unless otherwise specified in the problem, you may assume that all solutions are at 25°C. 1. 50.0 mL of a pH 6.00 carbonic acid buffer is titrated with 0.2857 M NaOH, requiring 17.47 mL to reach the second equivalence point. a. Calculate the molarity of carbonic acid and bicarbonate in the original buffer. Carbonic acid: Bicarbonate: b. Calculate the pH of the solution after a total of 100.0 mL of 0.2857...
25) The acid-dissociation constants of phosphoric acid (H2PO4) are KZ1 = 7.5 x 10-3, K22= 6.2 x 10-8, and K 3 = 4.2 x 10-13 at 25.0°C. What is the pH of a 2.00 M aqueous solution of phosphoric acid? 26) Zº is a weak base. An 0.350 M aqueous solution of NaZ is prepared. The pH of the solution was 8.93 at 25.0°C. The Ky of Zº is:
Q(13) A diprotic acid has two dissociation constants Kia for the first proton and Kzn for the second proton. Which is the relationship between the two Ka? A) K1a>K2a B) K1a<K2 C) K12=K2a D) K10<< K2a E) It cannot be determined Q(14) A 1.25 M solution of the weak acid HA is 9.2% dissociated. What is the pH of the solution? A) 0.64 B) 0.94 C) 1.13 D) 2.16 E) None of these choices is correct. Q(15) What is the...
41-60
CSa 21 Carbon disultide 22 Dinitrogen monoxide cC l4 SaBrs 23 Carbon tetrachloride 24 Trisulfur pentabromide 25 Hydroarsenic acid 26 CaBrz ZnsDu Cr(NDSe AUCH COD BasDs KCI Fo (Mn Dua HF HDF (NHa aN Co.(CIDYa Bacla Ph(CH CD Calcium bromide 27 Zinc sulfate 28 Chromium (I) nitrate 29 Aluminum acetate 30 Barium sulfite 31 Potassium chloride 32 Iron () permanganate 33 Hydrofluoric acid 34 Fluorous acid 35 Ammonium nitride 36 Cobalt () hypochlorite 37 Barium chloride 38 Lead ()...
6) At 25 C, the K, for formic acid (HCO2H) is 1.8 x 10-4. What is the pH of a 0.10 M aqueous solution of lithium formate (LiHCO2)? 7) What is the pH (aq., 25 °C) of this solution: adding 1.64 grams of sodium acetate to give 200.0 ml solution at 25.0°C? The K, at 25.0°C for acetic acid is 1.8 x 10-5.
Please I need help on this. I'm so lost
1. Acetic acid (H)CO2H) has k, = 1.8 x 10- and acetate (H:C:01") has ks = 5.6 x 10-10. (a) Write balanced chemical equilibrium equations (with physical states) for acid dissociation of acetic acid and base hydrolysis of acetate ion. (b) Write K, and equilibrium constant expressions for the above reactions. (c) Use your expressions from part b to show that Kx. = 1.0 x 10-* = [H,O'][OH). 2. For each...
Name Chem 110 Oct 15, 2019 Write the formulas from the names of compounds 1. sulfur dioxide 2. manganese (IV) oxide 3. sodium thiocyanate N aSON 4. lithium phosphate 5. nickel (II) nitrate Ni (NO2)2 6. ammonium chloride 7. potassium chlorate ka 8. beryllium periodate 9. cadmium chromate Cd Croa 10. sodium permanganate 11. iron (II) hydroxide Fe(OH)2 12. trinitrogen pentoxide 13. strontium nitride SraN₂ 14. magnesium bromate 15. sodium thiosulfate Na.S.O. 16. chlorous acid 17. sodium hypobromite Brno 18....
4. Using Table 15B-4, indicate the stronger acid in each pair. a. HI, H, SO b. HF HCN c. H2O2, HCHO, d. H_BO4, H3PO4 ssholds as e. HCl, HClO ahle 158-4 Relative Strengths of Some Acids and Bases Acid K very large very large very large very large very large very large Perchloric acid Hydriodic acid Hydrobromic acid Hydrochloric acid Sulfuric acid Nitric acid Sulfurous acid Hydrogen sulfate ion Phosphoric acid Hydrofluoric acid Formic acid Acetic acid Carbonic acid Hypochlorous...
please help
Description Balance Equation states on the prodeets) I. Aqueous sodium sulfate is placed in a beaker containing aqueous plumbous acetate 2.Butanol (CH,OH) gas burns Dovble Re ingle 3. Aqueous lithium chloride is placed LiClca) AgNsLNAgclcDisa in a beaker containing aqueous silver nitrate 4. Aquous nickel ID sulfate is placed in a beaker containing reuchen magnesium metal 5. Aqueous calcium hydroxide is placed in an Erlenmeyer fnask reuction containing nitric acid 6 Perchloric acid is added to a beaker...
Solubility Product Constants (Ksp at 25 °C) Type Formula Кsp Bromides PbBr2 6.3 x 10-6 AgBr 3.3 * 10-13 Carbonates BaCO3 8.1 x 10-9 CaCO3 3.8 x 10-9 COCO3 8.0 × 10-13 CuCO3 2.5 10-10 FeCO3 3.5 x 10-11 PbCO3 1.5 10-13 MgCO3 4.0 x 10-5 MnCO3 1.8 10-11 NiCO3 6.6 x 10-9 Ag2CO3 8.1 x 10-12 ZnCO3 1.5 x 10-11 Chlorides PbCl2 1.7 x 10-5 AgC1 1.8 10-10 Chromates BaCrO4 2.0 x 10-10 CaCrO4 7.1 x 10-4 PbCr04 1.8...
Please help with solving Question 1 (A-C) Thank you!
Unless otherwise specified in the problem, you may assume that all solutions are at 25°C. 1. 50.0 mL of a pH 6.00 carbonic acid buffer is titrated with 0.2857 M NaOH, requiring 17.47 mL to reach the second equivalence point. a. Calculate the molarity of carbonic acid and bicarbonate in the original buffer. Carbonic acid: Bicarbonate: b. Calculate the pH of the solution after a total of 100.0 mL of 0.2857...
Most questions answered within 3 hours.
-
Work of 1950 J is done by stirring a perfectly insulated beaker
containing 75 g of...
asked 18 minutes ago -
The neighborhood kids set up an outdoor lemonade stand in
Maryland in June. They find that...
asked 19 minutes ago -
9. A company has a beginning inventory of 4,000 units. The
company estimates it will sell...
asked 33 minutes ago -
A patient goes to the doctor's office with symptoms of a urinary
tract infection and provides...
asked 35 minutes ago -
When responding to the essay questions, be sure to cite any
material you obtained from a...
asked 35 minutes ago -
The energy of an electron in a 2.25-eV-deep potential well is
1.50 eV.At what distance into...
asked 37 minutes ago -
Q1:Which three evolutionary innovations are present in land
plants (but not all land plants) that allowed...
asked 39 minutes ago -
Lymphosarcoma is
extremely rare. Risk factors for the disease are largely unknown.
What kind of study...
asked 42 minutes ago -
The solubility of benzoic acid in water is:
0.29g/100mL at 20°C
6.8g/100mL at 100°C
a) What...
asked 43 minutes ago -
Which food law was passed in 1996 and changed how pesticide
residues on food were regulated...
asked 1 hour ago -
companies either hire outside programmers to
write_____ software or use their own internal developers.
asked 1 hour ago -
A magnetic dipole m(t) = m_0*cos(ωt) can be
described as current density j(r,t) = −cm(t) ×...
asked 1 hour ago