1) What will be the sign of the free energy change when solid sodium sulfide is...
1) What will be the sign of the free energy change when solid sodium sulfide is added to the following system? HgS(s) ⇌ S2−(aq) + Hg2+(aq)
a) delta G=0
b) delta G>0
c) delta G<0
2) The solubility product for silver chloride is 1.6 × 10−10. What is the molar solubility of silver chloride in a 6.5 × 10−3 M AgNO3 aqueous solution at 298 K?
a. 6.5 x 10−3
b. 2.8 x 10−20
c. 1.3 x 10−5
d. 4.8 x 10−4
e. 2.5 x 10−8
Homework Answers
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1) What will be the sign of the free energy change when solid
sodium sulfide is...
Question 1 According to the following reaction, what mass of silver nitrate would be required to...
Question 1 According to the following reaction, what mass of silver nitrate would be required to react with 0.500 grams of potassium chloride? AgNO3 (aq) + KCl (aq) --> AgCl (s) + KNO3 (aq) options 2.68 g 0.500 g 85.0 g 170 g 1.14 g Question 2 Consider the reaction: Na2CO3 (aq)+ 2 HCl (aq) --> 2 NaCl (aq) + CO2 (g) + H2O (l) If 43.41 g of sodium carbonate react completely, how many grams of HCl will be...
20) When solutions copper(II) sulti AC utions of sodium sulfide and copper(II) sulfate are mixed, a...
20) When solutions copper(II) sulti AC utions of sodium sulfide and copper(II) sulfate are mixed, a precipitate of of (11) sulfide is formed. What is the net ionic equation for this reaction? i Cu²+ (aq) + S2-(ag) Curs) + S B) Na2S(aq) + CuSO4(aq) + CuS(s) C) 2Na+ (aq) + (aq) + Cu2+ (aq) + SO42-ag) 2Nat(ag) + SO42-lag) D) Na2S(aq) + CuSO4(aq) - Na2SO4(aq) + Cu(s) E) Cu2+ (aq) + 52-ag) - CuS(s) 40) 41 Choose the best classification...
1 2 3 4 5 6 Aqueous hydrochloric acid (HCI) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium chl...
1 2 3 4 5 6 Aqueous hydrochloric acid (HCI) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium chloride (NaCl) and liquid water (H,0) 10.658 g of sodium chloride is produced from the reaction of 1.5 g of hydrochloric acid and 0.85 g of sodium hydroxide, calculate the percent yield of sodium chloride. Round your answer to 2 significant figures. X 5 ?
A solution contains 9.36x10M ammonium sulfide and 7.94x10- Mammonium phosphate. Solid lead acetate is added slowly...
A solution contains 9.36x10M ammonium sulfide and 7.94x10- Mammonium phosphate. Solid lead acetate is added slowly to this mixture. What is the concentration of sulfide ion when phosphate ion begins to precipitate? (sulfide] LU Substance Aluminum compounds Substance 1.6 X 10-16 1.9 X 10-33 1.3 x 10-20 7.8 x 10-21 6.7 X 10-31 2.4 x 10-23 1.6 X 10-9 Chromium compounds CrAsO4 CH(OH), СТРО. Cobalt compounds Co (AsO.) COCO, Co(OH), CoS (a) CoS (B) Co(OH), 1.1 X 10-13 8.1 x...
1. A solution contains 8.68×10-3 M sodium hydroxide and 6.04×10-3 M ammonium sulfide. Solid manganese(II) nitrate...
1. A solution contains 8.68×10-3 M sodium hydroxide and 6.04×10-3 M ammonium sulfide. Solid manganese(II) nitrate is added slowly to this mixture. A. What is the formula of the substance that precipitates first? formula = B. What is the concentration of manganese(II) ion when this precipitation first begins? [Mn2+] = M 2. A solution contains 5.04×10-3 M magnesium nitrate and 1.31×10-2 M nickel(II) acetate. Solid sodium hydroxide is added slowly to this mixture. A. What is the formula of...
1. When mixed, solutions of silver nitrate, AgNO, and sodium phosphate, Na3PO4, will form a precipitate...
1. When mixed, solutions of silver nitrate, AgNO, and sodium phosphate, Na3PO4, will form a precipitate of silver phosphate, Ag2PO4. The balanced equation is: 3AgNO3(aq) + Na3PO4(aq) Ag3PO4(s) + 3NaNO3(aq) Which of the following statements regarding this reaction is incorrect? A. 6 moles of AgNO, will react with 2 moles of Na2PO4 B. 9 moles of AgNO3 will form 2 moles of Ag3PO4, given sufficient Na3PO4 C. 1.5 moles of NaNO, will be formed when 0.5 mole of Na PO,...
O(NH4)2CO3 There is no solid formed when the two solutions are mixed. QUESTION 30 An aqueous...
O(NH4)2CO3 There is no solid formed when the two solutions are mixed. QUESTION 30 An aqueous solution of potassium chloride is mixed with an aqueous solution of sodium nitrate. The molecular equation contains which one of the following terms (when balanced in standard form)? O KCI(s) O KNO3(aq) O KNa(aq) OCINO3(aq) O NaCl(s) QUESTION 31 How many moles of Ca atoms are in 613.3 g Ca? 15.30 mol 6.535 x 10-2 mol
2Fe + S2 -> 2FeS b. Sodium hydroxide is dissolved in water and this solution is...
2Fe + S2 -> 2FeS b. Sodium hydroxide is dissolved in water and this solution is added to an aqueous solution of magnesium chloride to form solid magnesium hydroxide which precipitates out of solution. The other product is sodium chloride which stays in solution Write the symbols of the reactants. Write the symbols of the products. Write a balanced equation for the reaction. c. When carbon is burned in air, but there is only a limited amount of oxygen available,...
1) Will a precipitate form when 0.150 L of 0.10 M Pb(NO3)2 and 0.100 L of...
1) Will a precipitate form when 0.150 L of 0.10 M Pb(NO3)2 and 0.100 L of 0.20 M NaCl are mixed? (The K., for PbClzis 1.2 x 10-5 (Show your calculations) 2) Calculate whether a precipitate will form if 2.00 ml. of 0.60 M NH, are added to 1.0 L of 1.0 X 10 M FeSO4. (Show your calculations) (Given that Ko - NSON - 1.8 x 10 and Kp [Fe(OH):) - 1.6 10-") [NH, 3) Solid silver chromate is...
15. The mixing of which pair of reactants will result in a precipitation reaction? CsI(aq)...
15. The mixing of which pair of reactants will result in a precipitation reaction? CsI(aq) + NaOH(aq) HCl(aq) + Ca(OH)2(aq) K2SO4(aq) + Hg2(NO3)2(aq) NaNO3(aq) + NH4Cl(aq) 16. Which of the following is a precipitation reaction? Zn(s) + 2 AgNO3(aq) 2 Ag(s) + Zn(NO3)2(aq) NaCl(aq) + LiI(aq) NaI(aq) + LiCl(aq) 2 KI(aq) + Hg2(NO3)2(aq) Hg2I2(s) + 2 KNO3(aq) HI(aq) + NaOH(aq) NaI(aq) + H2O(l) None of these are precipitation reactions. 17. Which...
20) When solutions copper(II) sulti AC utions of sodium sulfide and copper(II) sulfate are mixed, a precipitate of of (11) sulfide is formed. What is the net ionic equation for this reaction? i Cu²+ (aq) + S2-(ag) Curs) + S B) Na2S(aq) + CuSO4(aq) + CuS(s) C) 2Na+ (aq) + (aq) + Cu2+ (aq) + SO42-ag) 2Nat(ag) + SO42-lag) D) Na2S(aq) + CuSO4(aq) - Na2SO4(aq) + Cu(s) E) Cu2+ (aq) + 52-ag) - CuS(s) 40) 41 Choose the best classification...
1 2 3 4 5 6 Aqueous hydrochloric acid (HCI) reacts with solid sodium hydroxide (NaOH) to produce aqueous sodium chloride (NaCl) and liquid water (H,0) 10.658 g of sodium chloride is produced from the reaction of 1.5 g of hydrochloric acid and 0.85 g of sodium hydroxide, calculate the percent yield of sodium chloride. Round your answer to 2 significant figures. X 5 ?
A solution contains 9.36x10M ammonium sulfide and 7.94x10- Mammonium phosphate. Solid lead acetate is added slowly to this mixture. What is the concentration of sulfide ion when phosphate ion begins to precipitate? (sulfide] LU Substance Aluminum compounds Substance 1.6 X 10-16 1.9 X 10-33 1.3 x 10-20 7.8 x 10-21 6.7 X 10-31 2.4 x 10-23 1.6 X 10-9 Chromium compounds CrAsO4 CH(OH), СТРО. Cobalt compounds Co (AsO.) COCO, Co(OH), CoS (a) CoS (B) Co(OH), 1.1 X 10-13 8.1 x...
1. When mixed, solutions of silver nitrate, AgNO, and sodium phosphate, Na3PO4, will form a precipitate of silver phosphate, Ag2PO4. The balanced equation is: 3AgNO3(aq) + Na3PO4(aq) Ag3PO4(s) + 3NaNO3(aq) Which of the following statements regarding this reaction is incorrect? A. 6 moles of AgNO, will react with 2 moles of Na2PO4 B. 9 moles of AgNO3 will form 2 moles of Ag3PO4, given sufficient Na3PO4 C. 1.5 moles of NaNO, will be formed when 0.5 mole of Na PO,...
O(NH4)2CO3 There is no solid formed when the two solutions are mixed. QUESTION 30 An aqueous solution of potassium chloride is mixed with an aqueous solution of sodium nitrate. The molecular equation contains which one of the following terms (when balanced in standard form)? O KCI(s) O KNO3(aq) O KNa(aq) OCINO3(aq) O NaCl(s) QUESTION 31 How many moles of Ca atoms are in 613.3 g Ca? 15.30 mol 6.535 x 10-2 mol
2Fe + S2 -> 2FeS b. Sodium hydroxide is dissolved in water and this solution is added to an aqueous solution of magnesium chloride to form solid magnesium hydroxide which precipitates out of solution. The other product is sodium chloride which stays in solution Write the symbols of the reactants. Write the symbols of the products. Write a balanced equation for the reaction. c. When carbon is burned in air, but there is only a limited amount of oxygen available,...
1) Will a precipitate form when 0.150 L of 0.10 M Pb(NO3)2 and 0.100 L of 0.20 M NaCl are mixed? (The K., for PbClzis 1.2 x 10-5 (Show your calculations) 2) Calculate whether a precipitate will form if 2.00 ml. of 0.60 M NH, are added to 1.0 L of 1.0 X 10 M FeSO4. (Show your calculations) (Given that Ko - NSON - 1.8 x 10 and Kp [Fe(OH):) - 1.6 10-") [NH, 3) Solid silver chromate is...
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