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calc pH of ea strong acid solution (express in 3 decimals) a. 2.11×10−2 M HNO3 b....
calc pH of ea strong acid solution (express in 3 decimals) a. 2.11×10−2 M HNO3 b. 0.220 g of HClO3 in 1.80 L of solution c. 10.00 mL of 2.00 M HCl diluted to 0.530 L . d. mixture formed by adding 60.0 mL of 2.5×10−2 M HCl to 160 mL of 1.0×10−2 M HI.
help!!! how do I answer this Page 1 of 6 a. (3 Points) If 145 grams...
help!!! how do I answer this
Page 1 of 6 a. (3 Points) If 145 grams of lead nitrate were added to water to make 1.50 x 10 mL of solution, what would be the molarity of the resulting solution Pb(NO) molar mass w 331.21 gmol b. (3 Points) What is the molar concentration of chloride sons in a solution prepared by mixing 50.0 mL of 1.5 M KCI with 100.0 mL of a 2.5 M Cacla solution? took 100%...
1. A volume of water was heated to 81.76 °C and immediately added to 48.80 mL of water at 20.55 °C contained within a co...
1. A volume of water was heated to 81.76 °C and immediately added to 48.80 mL of water at 20.55 °C contained within a coffee cup calorimeter. The final temperature of the mixture was 37.73 °C. The final volume of water inside the calorimeter was 92.03 mL. Assuming that them heat capacity of the solution is 4.18 J/g/°C, calculate the following: a. The volume of hot water added ml b. The mass of hot water (dwater = 1.00 g/mL) g...
please answer all Questions EXPERIMENT Heat of neutralization 1. 5.0 ml of al Macid reacts with...
please answer all
Questions EXPERIMENT Heat of neutralization 1. 5.0 ml of al Macid reacts with 50 ml of IM have in a coffee cup calorimeter with a heat capacity of 10. J. C . Calculate the rise in temperature of the calorimeter assuming the density of the mixture is and given that AH,= 50. kJ/mol. JU 2. When 5.0 ml. of 1.00 M HNO3 solution at 25.0°C reacts with 5.0 mL of 1.00 M NaOH solution at the same...
22%D 22:27 513 395 5 - Question 3 (13 marks) TODO of ☺ ☺ + B...
22%D 22:27 513 395 5 - Question 3 (13 marks) TODO of ☺ ☺ + B Uzxy , s xx = -snapped = non-lin 7 i 363)-6=3" The solubility product constant of Mg(OH)2, Ksp, is given as 7.1 x 10-12. (a) If a solution is 0.0303 M with respect to Mg2+ ion, what is the molar concentration of OH required to start the precipitation of Mg(OH)2? (2 marks) (b) Calculate the pH of the solution that results when 0.081 g...
5. Which one of the following 1.0 M solutions would exhibit the lowest conductivity? a. H2SO4...
5. Which one of the following 1.0 M solutions would exhibit the lowest conductivity? a. H2SO4 b. HCI c. AICI: d. Sr(NO3)2 6. In a calorimeter, HCl is mixed with NaOH at 20 °C and the volume of the resulting solution is 180 mL. When the reaction is complete the temperature of the solution is 26 °C. Determine the heat for the reaction assuming the specific heat of water is 4.18J/g*C, and the density of the solution is 1.2 g/mL....
D Question 4 5 pts 2b) There are 0.10 moles of N2O4 and 0.20 moles of...
D Question 4 5 pts 2b) There are 0.10 moles of N2O4 and 0.20 moles of NO 2 present in a 2.0 L container which may react according to: N2O4(g) = 2N028) Kp = 11 What is the value of Qp for the initial gas mixture? a. 4.0 b. 0.20 c. 0.40 d.5.0 . a. b. Consider the following equilibrium systems. Which direction will the reactions shift (reactants or products) when cooled? 200g + O2(g) = 2CO2(g) H2e+12(e)=2HI® H2(g) +126)...
1. A volume of water was heated to 83.90 °C and immediately added to 48.11 mL...
1. A volume of water was heated to 83.90 °C and immediately added to 48.11 mL of water at 23.98 °C contained within a coffee cup calorimeter. The final temperature of the mixture was 40.86 °C. The final volume of water inside the calorimeter was 90.45 mL. Assuming that them heat capacity of the solution is 4.18 J/g/°C, calculate the following: a. The volume of hot water added ml b. The mass of hot water (dwater = 1.00 g/mL) c....
Figure out the pH of solutions A, C, and D. Solution A is 40.0 mL of...
Figure out the pH of solutions A, C, and D. Solution A is 40.0 mL of .100 M weak acid HX. Solution B is 0.500 M salt NaX and has a pH of 10.02 Solution C is made by adding 10.0 mL of 0.250 M KOH to solution A. Solution D is made by adding 10.0 mL of 0.100 M HCl to Solution C. Each pH is rounded to 2 decimal places. Hint: start with solution B in regards to...
D Question 6 1 pts Given the balanced chemical equation: Ba(NO3)2(aq)+ Na2SO4(aq) BaSO4(s) + 2 NaNO3(aq)...
D Question 6 1 pts Given the balanced chemical equation: Ba(NO3)2(aq)+ Na2SO4(aq) BaSO4(s) + 2 NaNO3(aq) ons A 0.30 L of 0.15 M Ba(NO3)2(aq) is mixed with excess Na2SO4(aq) to make 200.0 g of solution in a coffee-cup calorimeter and allowed to react completely. The temperature of the solution rises from 23.5 °C to 24.9 °C. Answer the question in each step to find ΔHrxn for this reaction. Csson-4.18 J/g °C Stirrer sources Cover Step 1: The reaction is I...
help!!! how do I answer this
Page 1 of 6 a. (3 Points) If 145 grams of lead nitrate were added to water to make 1.50 x 10 mL of solution, what would be the molarity of the resulting solution Pb(NO) molar mass w 331.21 gmol b. (3 Points) What is the molar concentration of chloride sons in a solution prepared by mixing 50.0 mL of 1.5 M KCI with 100.0 mL of a 2.5 M Cacla solution? took 100%...
please answer all
Questions EXPERIMENT Heat of neutralization 1. 5.0 ml of al Macid reacts with 50 ml of IM have in a coffee cup calorimeter with a heat capacity of 10. J. C . Calculate the rise in temperature of the calorimeter assuming the density of the mixture is and given that AH,= 50. kJ/mol. JU 2. When 5.0 ml. of 1.00 M HNO3 solution at 25.0°C reacts with 5.0 mL of 1.00 M NaOH solution at the same...
22%D 22:27 513 395 5 - Question 3 (13 marks) TODO of ☺ ☺ + B Uzxy , s xx = -snapped = non-lin 7 i 363)-6=3" The solubility product constant of Mg(OH)2, Ksp, is given as 7.1 x 10-12. (a) If a solution is 0.0303 M with respect to Mg2+ ion, what is the molar concentration of OH required to start the precipitation of Mg(OH)2? (2 marks) (b) Calculate the pH of the solution that results when 0.081 g...
5. Which one of the following 1.0 M solutions would exhibit the lowest conductivity? a. H2SO4 b. HCI c. AICI: d. Sr(NO3)2 6. In a calorimeter, HCl is mixed with NaOH at 20 °C and the volume of the resulting solution is 180 mL. When the reaction is complete the temperature of the solution is 26 °C. Determine the heat for the reaction assuming the specific heat of water is 4.18J/g*C, and the density of the solution is 1.2 g/mL....
D Question 4 5 pts 2b) There are 0.10 moles of N2O4 and 0.20 moles of NO 2 present in a 2.0 L container which may react according to: N2O4(g) = 2N028) Kp = 11 What is the value of Qp for the initial gas mixture? a. 4.0 b. 0.20 c. 0.40 d.5.0 . a. b. Consider the following equilibrium systems. Which direction will the reactions shift (reactants or products) when cooled? 200g + O2(g) = 2CO2(g) H2e+12(e)=2HI® H2(g) +126)...
1. A volume of water was heated to 83.90 °C and immediately added to 48.11 mL of water at 23.98 °C contained within a coffee cup calorimeter. The final temperature of the mixture was 40.86 °C. The final volume of water inside the calorimeter was 90.45 mL. Assuming that them heat capacity of the solution is 4.18 J/g/°C, calculate the following: a. The volume of hot water added ml b. The mass of hot water (dwater = 1.00 g/mL) c....
D Question 6 1 pts Given the balanced chemical equation: Ba(NO3)2(aq)+ Na2SO4(aq) BaSO4(s) + 2 NaNO3(aq) ons A 0.30 L of 0.15 M Ba(NO3)2(aq) is mixed with excess Na2SO4(aq) to make 200.0 g of solution in a coffee-cup calorimeter and allowed to react completely. The temperature of the solution rises from 23.5 °C to 24.9 °C. Answer the question in each step to find ΔHrxn for this reaction. Csson-4.18 J/g °C Stirrer sources Cover Step 1: The reaction is I...
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