Homework Answers
5. Strong electrolytes are the strong acids, strong bases, and salts. These are completely dissociate into ions in aqueous solution.
in this question strong electrolytes are - HBr , HNO3. AgNO3.
6. Weak electrolytes only partially break into ions in water. Weak electrolytes include weak acids, weak bases, and a variety of other compounds. Most compounds that contain nitrogen are weak electrolytes.
in this question - HF, NH3
7. for NaI = Na+ and I-. for K2SO4 = 2K+ + SO42- for NaCN = Na+ + CN- for Ba(OH)2 = Ba2+ + 2OH-.
for (NH4)2SO4 = 2(NH4)+ and (SO4)2-
8. K2SO4 + Ca(NO3)2 = 2 KNO3 + CaSO4
HBr + NaOH = NaBr + H20
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Which of the following are strong electrolytes: BaSO_4, AgNO_3, HBr, HNO_2 and HC_2H_2O_2 6. Which of the fol...
Question 69? What volume of 0.175 M Na_3PO_4 solution is completely react with 95 4 ml...
Question 69?
What volume of 0.175 M Na_3PO_4 solution is completely react with 95 4 ml of 0.102 M CuCl_2? Consider the reaction Li_2S(aq) + Co(NO_3)_29aq) rightarrow 2 LiNO_3 (aq) + CoS(s) What volume of 0.150 M Li_2 S solution is required to completely react with 125 mL of 0.150 M Co(NO_3)_2? What is the minimum amount of 6.0 M H_2SO_4. necessary to produce 25.0 g of H_2 (g) according to the reaction between aluminum and sulfuric acid? 2 Al...
#2 & 3 Identify the following species in water, as Bronsted Acids [A] or Bronsted Bases...
#2 & 3
Identify the following species in water, as Bronsted Acids [A] or Bronsted Bases [B]: H_3O^+; H_2SO_4; OH^-; HCN; CH_3COOH; CH_3NH_2 WRITE NET Ionic Equations for the reactions of H_2PO_4^-, an amphiprotic ion, with aqueous solutions of HCl KOH Give the conjugate base for each of the following acids: HI HSO_4^- H_2CO_3 C_2H_5NH_3^+ Give the conjugate acid for each of the following bases: NH_3 O^2- H_2O PO_4^3- Identify the conjugate acid-base pairs in each of the following reactions:...
How many grams of each of the following substances will dissolve in 100 mL of cold...
How many grams of each of the following substances will dissolve in 100 mL of cold water? Consult a handbook or the Internet and cite your source. Ce(IO_3)_4 RaSO_4 Pb(NO_3)_2 (NH_4)_2SeO_4 Which of these substances is least soluble on a gram-per-100 mL basis? Suppose you have a solution that might contain any or all of the following cations. Cu^2+, Ag^+, Ba^2+, and Mn^2+. The addition of HBr causes a precipitate to form. After the precipitate is filtered off, H_2SO_4 is...
in the table below, predict which of the following reactant combinations will produce precipitates and write...
in the table below, predict which of the following reactant
combinations will produce precipitates and write all the products
that form (including states of matters- l, s, aq, g; write
"ss" if it is slightly soluble). Useful information is
also below.
TABLE 4.1 | Simple Rules for the Solubility of Salts in Water 1. Most nitrate (NO3-) salts are soluble. 2. Most salts containing the alkali metal ions (Li+, Na+, K+, Cst, Rb+) and the ammonium ion (NH4+) are soluble....
in the table below, predict which of the following reactant combinations will produce precipitates and write...
in the table below, predict which of the following reactant
combinations will produce precipitates and write all the products
that form (including states of matters- l, s, aq, g; write
"ss" if it is slightly soluble). Useful information is
also below.
TABLE 4.1 | Simple Rules for the Solubility of Salts in Water 1. Most nitrate (NO3-) salts are soluble. 2. Most salts containing the alkali metal ions (Li+, Na+, K+, Cst, Rb+) and the ammonium ion (NH4+) are soluble....
QUESTION 1 Which of the following solutions is a buffer? A mixture of HF and HBr A...
QUESTION 1 Which of the following solutions is a buffer? A mixture of HF and HBr A mixture of H2SO4 and Na2SO4 A mixture of NaI and HI A mixture of NaF and HF 1 points QUESTION 2 What is the [A-]/[HA] ratio in a buffer made of HA and its conjugate base, A-, and has a pH of 8.00 ? The pKa of HA is 6.00 1:1 1:10 1:100 10:1 100:1 1 points QUESTION 3 If the molar...
When you write the answers, please write the page number for which the question is located....
When you write the answers, please write the page number for
which the question is located. Thank you!
Experiment 8 Name: Double Replacement Reactions Background: Some reactions have the net effect of causing the cation of cach reactant to trade places, forming a compound with the other anion. These reactions are known as double replacement reactions. In the example below (unbalanced equation), the barium and sodium cations switch places so that barium forms a product with sulfate while sodium forms...
Experiment 8 Double Replacement Reactions Background: Some reactions have the net effect of causing the cation...
Experiment 8 Double Replacement Reactions Background: Some reactions have the net effect of causing the cation of each reactant to trade places, forming a compound with the other anion. These reactions are known as double replacement reactions. In the example below (unbalanced equation), the barium and sodium cations switch places so that barium forms a product with sulfate while sodium forms a product with chloride. Note that the formula of each product is determined by the charges of the ions,...
if you can't answer all ,please don't answer 1) of the reactions below, which one is...
if you can't answer all ,please don't answer
1) of the reactions below, which one is a decomposition reaction? A) Ca(NO3)2 + Na2S -- CdS +2NaNO3 B) NH4Cl- NH3 + HCI C) 2Mg + 02 - 2MgO D) 2N2 + 3H2 → 2NH3 E) 2CH4 + 402 - 2002 + 4H20 miches of - x 1? 2 2) Calculate the percentage by mass of ammonia in cisplatin, PtCl2/NH3 12. A) 12.53 B) 5.68 C) 18.09 D) 11.35 E) 4.67 3)...
Calculate the standard free-energy change and the equilibrium constant Kc for the following reaction at 25°C....
Calculate the standard free-energy change and the equilibrium constant Kc for the following reaction at 25°C. See Appendix C for data. Fe(s) + Cu2+ (aq) = Fe2+ (aq) + Cu(s) Find equilibrium constan + K at 25°C Appendix C Thermodynamic Quantities for Substances and Ions at 25°C Substance or lon AH; (kJ/mol) AG; (kJ/mol (J/mol-K) 20.87 Substance or lon Ba(OH),(s) ΔΗ: (kJ/mol) -946.3 --3342.2 AG (kJ/mol) -859.3 -2793 (J/mol K) 107.1 427 Ba(OH), 8H,O(s) BaSO (8) - 1473.2 -1362.3 132.2...
Question 69?
What volume of 0.175 M Na_3PO_4 solution is completely react with 95 4 ml of 0.102 M CuCl_2? Consider the reaction Li_2S(aq) + Co(NO_3)_29aq) rightarrow 2 LiNO_3 (aq) + CoS(s) What volume of 0.150 M Li_2 S solution is required to completely react with 125 mL of 0.150 M Co(NO_3)_2? What is the minimum amount of 6.0 M H_2SO_4. necessary to produce 25.0 g of H_2 (g) according to the reaction between aluminum and sulfuric acid? 2 Al...
#2 & 3
Identify the following species in water, as Bronsted Acids [A] or Bronsted Bases [B]: H_3O^+; H_2SO_4; OH^-; HCN; CH_3COOH; CH_3NH_2 WRITE NET Ionic Equations for the reactions of H_2PO_4^-, an amphiprotic ion, with aqueous solutions of HCl KOH Give the conjugate base for each of the following acids: HI HSO_4^- H_2CO_3 C_2H_5NH_3^+ Give the conjugate acid for each of the following bases: NH_3 O^2- H_2O PO_4^3- Identify the conjugate acid-base pairs in each of the following reactions:...
How many grams of each of the following substances will dissolve in 100 mL of cold water? Consult a handbook or the Internet and cite your source. Ce(IO_3)_4 RaSO_4 Pb(NO_3)_2 (NH_4)_2SeO_4 Which of these substances is least soluble on a gram-per-100 mL basis? Suppose you have a solution that might contain any or all of the following cations. Cu^2+, Ag^+, Ba^2+, and Mn^2+. The addition of HBr causes a precipitate to form. After the precipitate is filtered off, H_2SO_4 is...
in the table below, predict which of the following reactant
combinations will produce precipitates and write all the products
that form (including states of matters- l, s, aq, g; write
"ss" if it is slightly soluble). Useful information is
also below.
TABLE 4.1 | Simple Rules for the Solubility of Salts in Water 1. Most nitrate (NO3-) salts are soluble. 2. Most salts containing the alkali metal ions (Li+, Na+, K+, Cst, Rb+) and the ammonium ion (NH4+) are soluble....
in the table below, predict which of the following reactant
combinations will produce precipitates and write all the products
that form (including states of matters- l, s, aq, g; write
"ss" if it is slightly soluble). Useful information is
also below.
TABLE 4.1 | Simple Rules for the Solubility of Salts in Water 1. Most nitrate (NO3-) salts are soluble. 2. Most salts containing the alkali metal ions (Li+, Na+, K+, Cst, Rb+) and the ammonium ion (NH4+) are soluble....
When you write the answers, please write the page number for
which the question is located. Thank you!
Experiment 8 Name: Double Replacement Reactions Background: Some reactions have the net effect of causing the cation of cach reactant to trade places, forming a compound with the other anion. These reactions are known as double replacement reactions. In the example below (unbalanced equation), the barium and sodium cations switch places so that barium forms a product with sulfate while sodium forms...
Experiment 8 Double Replacement Reactions Background: Some reactions have the net effect of causing the cation of each reactant to trade places, forming a compound with the other anion. These reactions are known as double replacement reactions. In the example below (unbalanced equation), the barium and sodium cations switch places so that barium forms a product with sulfate while sodium forms a product with chloride. Note that the formula of each product is determined by the charges of the ions,...
if you can't answer all ,please don't answer
1) of the reactions below, which one is a decomposition reaction? A) Ca(NO3)2 + Na2S -- CdS +2NaNO3 B) NH4Cl- NH3 + HCI C) 2Mg + 02 - 2MgO D) 2N2 + 3H2 → 2NH3 E) 2CH4 + 402 - 2002 + 4H20 miches of - x 1? 2 2) Calculate the percentage by mass of ammonia in cisplatin, PtCl2/NH3 12. A) 12.53 B) 5.68 C) 18.09 D) 11.35 E) 4.67 3)...
Calculate the standard free-energy change and the equilibrium constant Kc for the following reaction at 25°C. See Appendix C for data. Fe(s) + Cu2+ (aq) = Fe2+ (aq) + Cu(s) Find equilibrium constan + K at 25°C Appendix C Thermodynamic Quantities for Substances and Ions at 25°C Substance or lon AH; (kJ/mol) AG; (kJ/mol (J/mol-K) 20.87 Substance or lon Ba(OH),(s) ΔΗ: (kJ/mol) -946.3 --3342.2 AG (kJ/mol) -859.3 -2793 (J/mol K) 107.1 427 Ba(OH), 8H,O(s) BaSO (8) - 1473.2 -1362.3 132.2...
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