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QUESTION 5 2 points Check all the compounds below that are products in the follow reaction....
Write the five equations (balanced and including states). Label them step 1 through 5. HINT gor the step 1 reaction: ge...
Write the five equations (balanced and including states). Label
them step 1 through 5. HINT gor the step 1 reaction: get rid of O2
and 2 moles of NO2 is made for every 4 moles of HNO3.
Unbalanced reactions for each step: Step 1: HNO3(aq) + Cu(s) + O2 (g) → Cu(NO3)2(aq) + H2O(l) + NO2(g) Step 2: Cu(NO3)2(aq) + NaOH(aq) → Cu(OH)2(s) + NaNO3(aq) Step 3: Cu(OH)2(s) → CuO(s) + H2O(1) Step 4: CuO(s) + H2SO4(aq) → CuSO4(aq) +...
Question 1 2 pts Given the balanced chemical equation: Thermometer Ba(NO3)2(aq) + Na2SO4(aq) →BaSO4(s) + 2...
Question 1 2 pts Given the balanced chemical equation: Thermometer Ba(NO3)2(aq) + Na2SO4(aq) →BaSO4(s) + 2 NaNO3(aq) - Stirrer 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 Hrxn for this reaction. Cs,soln = 4.18 J/g °C Cover Step 1: The reaction...
5. Question 2 1 pts Suppose you are investigating the reaction: M(s) + 2 HCl(aq) →...
5.
Question 2 1 pts Suppose you are investigating the reaction: M(s) + 2 HCl(aq) → MCl2(aq) + H2(g). You weigh out a 0.202 gram piece of metal and combine it with 62.2 mL of 1.00 M HCl in a coffee-cup calorimeter. If the molar mass of the metal is 48.51 g/mol, and you measure that the reaction absorbed 111 J of heat, what is the enthalpy of this reaction in kJ per mole of limiting reactant? Enter your answer...
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...
When a 5.12-g sample of solid sodium nitrate dissolves in 31.1 g of water in a...
When a 5.12-g sample of solid sodium nitrate dissolves in 31.1 g
of water in a coffee-cup calorimeter (see above figure) the
temperature falls from 25.00 oC to 16.37 oC.
Calculate H in kJ/mol NaNO3 for the solution
process.
NaNO3(s)
Na+(aq) + NO3-(aq)
The specific heat of water is 4.18 J/g-K.
We were unable to transcribe this imageWe were unable to transcribe this imagethermometer stirrer coffee cups containing reaction mixture When a 5.12-g sample of solid sodium nitrate dissolves in...
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...
5. Which is the reducing agent in the following redox reaction? CuSO4 + Zn - >...
5. Which is the reducing agent in the following redox reaction? CuSO4 + Zn - > Cu + ZnSO. a) CuSO4 b) Zn c) ZnSO4 d) Cu 6. The oxidation number of manganese (Mn) in Mno, is; a) + 8 - 6 - 7 c) + 7 d) -8 7. Which of the following is insoluble in water? a) Ca(NO3) 2 b ) NaSO4 c) NH4Cl d) AgCI 8. What are the spectator ions in the reaction below? Ca(NO3)2 +...
Instructor: Ewa Zajac, PhD In acid and sodium acetate are mixed; the total ionic reaction is...
Instructor: Ewa Zajac, PhD In acid and sodium acetate are mixed; the total ionic reaction is points): H(aq) + Cl(aq) + Na* (ng) + C2H2O2 (ag) - HCH,02(+ Nav + C a. What type of reaction is taking place? b. What are the spectator ions? c. Write the balanced conventional equation: d. Write the balanced net ionic equation: e. What evidence would you likely observe that a reaction has taken place? 5. Given the following data determine the relative activities...
2. The reaction described in problem #1 is the focus of a calorimetry experiment which generates...
2. The reaction described in problem #1 is the focus of a calorimetry experiment which generates the following data: - A dry coffee-cup calorimeter is weighed on a balance; its mass is 6.092 g - 25.0 mL of 0.317 M sodium sulfate solution is added to the calorimeter; the mass of the calorimeter with this solution volume is measured to be 31.072 g. - 25.0 mL of 0.228 M aluminum nitrate solution is mixed with the sodium sulfate solution already...
Question 31 2 pts For the following reaction, determine what the products of this reaction will...
Question 31 2 pts For the following reaction, determine what the products of this reaction will be. When you have predicted the products, balance the equation and use a table of solubility products to determine which of the products (if any) will precipitate. Assume all reactions take place in water. Cu(OH)2 + H3PO4> 3 Cu(OH)2(aq) + 2 H3PO4(aq)-> 6 H20(I)+ Cu3(PO4)2 (aq) none of these 0all of these 3 Cu(OH)2(aq) + 2 H3PO4(aq)>6 H2O(I)+ Cu3(PO4)2 (s) 2 Question 32 We...
Write the five equations (balanced and including states). Label
them step 1 through 5. HINT gor the step 1 reaction: get rid of O2
and 2 moles of NO2 is made for every 4 moles of HNO3.
Unbalanced reactions for each step: Step 1: HNO3(aq) + Cu(s) + O2 (g) → Cu(NO3)2(aq) + H2O(l) + NO2(g) Step 2: Cu(NO3)2(aq) + NaOH(aq) → Cu(OH)2(s) + NaNO3(aq) Step 3: Cu(OH)2(s) → CuO(s) + H2O(1) Step 4: CuO(s) + H2SO4(aq) → CuSO4(aq) +...
Question 1 2 pts Given the balanced chemical equation: Thermometer Ba(NO3)2(aq) + Na2SO4(aq) →BaSO4(s) + 2 NaNO3(aq) - Stirrer 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 Hrxn for this reaction. Cs,soln = 4.18 J/g °C Cover Step 1: The reaction...
5.
Question 2 1 pts Suppose you are investigating the reaction: M(s) + 2 HCl(aq) → MCl2(aq) + H2(g). You weigh out a 0.202 gram piece of metal and combine it with 62.2 mL of 1.00 M HCl in a coffee-cup calorimeter. If the molar mass of the metal is 48.51 g/mol, and you measure that the reaction absorbed 111 J of heat, what is the enthalpy of this reaction in kJ per mole of limiting reactant? Enter your answer...
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...
When a 5.12-g sample of solid sodium nitrate dissolves in 31.1 g
of water in a coffee-cup calorimeter (see above figure) the
temperature falls from 25.00 oC to 16.37 oC.
Calculate H in kJ/mol NaNO3 for the solution
process.
NaNO3(s)
Na+(aq) + NO3-(aq)
The specific heat of water is 4.18 J/g-K.
We were unable to transcribe this imageWe were unable to transcribe this imagethermometer stirrer coffee cups containing reaction mixture When a 5.12-g sample of solid sodium nitrate dissolves in...
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...
5. Which is the reducing agent in the following redox reaction? CuSO4 + Zn - > Cu + ZnSO. a) CuSO4 b) Zn c) ZnSO4 d) Cu 6. The oxidation number of manganese (Mn) in Mno, is; a) + 8 - 6 - 7 c) + 7 d) -8 7. Which of the following is insoluble in water? a) Ca(NO3) 2 b ) NaSO4 c) NH4Cl d) AgCI 8. What are the spectator ions in the reaction below? Ca(NO3)2 +...
Instructor: Ewa Zajac, PhD In acid and sodium acetate are mixed; the total ionic reaction is points): H(aq) + Cl(aq) + Na* (ng) + C2H2O2 (ag) - HCH,02(+ Nav + C a. What type of reaction is taking place? b. What are the spectator ions? c. Write the balanced conventional equation: d. Write the balanced net ionic equation: e. What evidence would you likely observe that a reaction has taken place? 5. Given the following data determine the relative activities...
2. The reaction described in problem #1 is the focus of a calorimetry experiment which generates the following data: - A dry coffee-cup calorimeter is weighed on a balance; its mass is 6.092 g - 25.0 mL of 0.317 M sodium sulfate solution is added to the calorimeter; the mass of the calorimeter with this solution volume is measured to be 31.072 g. - 25.0 mL of 0.228 M aluminum nitrate solution is mixed with the sodium sulfate solution already...
Question 31 2 pts For the following reaction, determine what the products of this reaction will be. When you have predicted the products, balance the equation and use a table of solubility products to determine which of the products (if any) will precipitate. Assume all reactions take place in water. Cu(OH)2 + H3PO4> 3 Cu(OH)2(aq) + 2 H3PO4(aq)-> 6 H20(I)+ Cu3(PO4)2 (aq) none of these 0all of these 3 Cu(OH)2(aq) + 2 H3PO4(aq)>6 H2O(I)+ Cu3(PO4)2 (s) 2 Question 32 We...
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