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Elemental calcium is produced by the electrolysis of molten CaCl2. A) What mass of calcium can...
Elemental calcium is produced by the electrolysis of molten CaCl2. A) What mass of calcium can be produced by this process if a current of 6600 A is applied for 50 h? Assume that the electrolytic cell is 66 % efficient. Express your answer using two significant figures. *incorrect answer = 8.1 x 10^8 g; 8.6 x 10^8 g B) What is the minimum voltage needed to cause the electrolysis? Express your answer using three significant figures.
ch.19 answer each of them please Part A What mass of lead sulfate is formed in...
ch.19
answer each of them please
Part A What mass of lead sulfate is formed in a lead-acid storage battery when 1.12 g of Pb undergoes oxidation? IVO AQ ? Submit Request Answer Part A What mass of aluminum metal can be produced per hour in the electrolysis of a molten aluminum salt by a current of 29 A? Express your answer using two significant figures. VO AXO ? mo 8 Submit Request Answer Copper can be electroplated at the...
For the vectors given in the figure, determine (Figure 1) | Part A Part B the...
For the vectors given in the figure, determine (Figure 1) | Part A Part B the direction of A - B+C Express your answer using three significant figures. VALO A O O ? = below x axis Submit Request Answer Figure < 1 of 1 > Part C B (B = 26.5) the magnitude of A+B-C Express your answer using three significant figures. 5609 A (A = 44.0) 128.00 O ADD R o B ? C(C= 31.0) |Ā+B – 1...
The decomposition of N2O5 in carbon tetrachloride proceeds as follows: What is the rate of reaction...
The decomposition of N2O5 in carbon tetrachloride proceeds as follows: What is the rate of reaction when N205] = 0.0270? Express the rate in molarity per second to three significant figures. 2N2O3 + 4NO2 + O2 The rate law is first order in N2O5. At 64 °C the rate constant is 4.82 x 10-3 3-1 IV AP R O 2 ? You may want to reference (Pages 576 - 581) Section 14.3 while completing this problem. rate = M /S...
11 Review Constants I Period What is the total number of moles of particles in 1.0...
11 Review Constants I Period What is the total number of moles of particles in 1.0 Lof each of the following solutions? Part A You may want to reference (Pages 338 - 347) Section 9.6 while completing this problem. 0.9% (m/v) NaCl (strong electrolyte), used to replace lost body fluids and salts Express the number of moles to one significant figure. IVO AQ R O a ? moles Submit Request Answer Part B 5.0% (m/v) dextrose (C6H206), used to provide...
The following reaction is first order in N2O5: N2O5(g)→NO3(g)+NO2(g) The rate constant for the reaction at...
The following reaction is
first order in N2O5: N2O5(g)→NO3(g)+NO2(g) The rate constant for
the reaction at a certain temperature is 0.053/s. You may want to
reference (Pages 593 - 598) Section 14.4 while completing this
problem. Part A Calculate the rate of the reaction when [N2O5]=
5.7×10−2 M. Express your answer using two significant figures. rate
= nothing M/s Request Answer Part B What would the rate of the
reaction be at the same concentration as in Part A if...
The position of a 220 g object is given (in meters) by = 4.9 t -...
The position of a 220 g object is given (in meters) by = 4.9 t - 8.0t– 45 t, where t is in seconds. Part C What is the average net power input during the interval from t=0 sto t=2.1s? Express your answer using two significant figures. IVO ALD A O P ? Pavg Submit Request Answer Part D What is the average net power input during the interval from t = 2.1s to t = 4.0s? Express your answer...
Ka value is not given in the question, solve for Ka to answer the question Part...
Ka value is not given in the question, solve for Ka to answer
the question
Part C Calculate [H3O+] of the following polyprotic acid solution: 0.130 MH3C6H5O7. Express your answer using two significant figures. IVO ALOM O O ? [H3O+]= Submit Request Answer
Exercise 13.36 with eText link 1 of 10 ㎜ Review 1 Constants Periodic Table Part A Refer to Figure 13.4 in the textbook to determine whether each of the given amounts of solid will completely d...
Exercise 13.36 with eText link 1 of 10 ㎜ Review 1 Constants Periodic Table Part A Refer to Figure 13.4 in the textbook to determine whether each of the given amounts of solid will completely dissolve in the given amount of water at the indicated temperature. Check all that apply 15.0 g KCIO3ìn 115 g of water at 25°C 5o.0 g Pb(NO3)2 in 95.0 g of water at 10 C 45.0 g CaCl2 in 105 g of water at 5°C...
The position of a mass oscillating on a spring is given by x = (7.0cm) cos...
The position of a mass oscillating on a spring is given by x = (7.0cm) cos (21t/ (0.50s)]. You may want to review (Pages 421 - 424). Part A What is the frequency of this motion? Express your answer using two significant figures. V AE O 2 ? Submit Request Answer Part B When is the mass first at the position x = -7.0cm ? Express your answer using two significant figures. VO ALQ R O 2 ? Submit Request...
ch.19
answer each of them please
Part A What mass of lead sulfate is formed in a lead-acid storage battery when 1.12 g of Pb undergoes oxidation? IVO AQ ? Submit Request Answer Part A What mass of aluminum metal can be produced per hour in the electrolysis of a molten aluminum salt by a current of 29 A? Express your answer using two significant figures. VO AXO ? mo 8 Submit Request Answer Copper can be electroplated at the...
For the vectors given in the figure, determine (Figure 1) | Part A Part B the direction of A - B+C Express your answer using three significant figures. VALO A O O ? = below x axis Submit Request Answer Figure < 1 of 1 > Part C B (B = 26.5) the magnitude of A+B-C Express your answer using three significant figures. 5609 A (A = 44.0) 128.00 O ADD R o B ? C(C= 31.0) |Ā+B – 1...
The decomposition of N2O5 in carbon tetrachloride proceeds as follows: What is the rate of reaction when N205] = 0.0270? Express the rate in molarity per second to three significant figures. 2N2O3 + 4NO2 + O2 The rate law is first order in N2O5. At 64 °C the rate constant is 4.82 x 10-3 3-1 IV AP R O 2 ? You may want to reference (Pages 576 - 581) Section 14.3 while completing this problem. rate = M /S...
11 Review Constants I Period What is the total number of moles of particles in 1.0 Lof each of the following solutions? Part A You may want to reference (Pages 338 - 347) Section 9.6 while completing this problem. 0.9% (m/v) NaCl (strong electrolyte), used to replace lost body fluids and salts Express the number of moles to one significant figure. IVO AQ R O a ? moles Submit Request Answer Part B 5.0% (m/v) dextrose (C6H206), used to provide...
The following reaction is
first order in N2O5: N2O5(g)→NO3(g)+NO2(g) The rate constant for
the reaction at a certain temperature is 0.053/s. You may want to
reference (Pages 593 - 598) Section 14.4 while completing this
problem. Part A Calculate the rate of the reaction when [N2O5]=
5.7×10−2 M. Express your answer using two significant figures. rate
= nothing M/s Request Answer Part B What would the rate of the
reaction be at the same concentration as in Part A if...
The position of a 220 g object is given (in meters) by = 4.9 t - 8.0t– 45 t, where t is in seconds. Part C What is the average net power input during the interval from t=0 sto t=2.1s? Express your answer using two significant figures. IVO ALD A O P ? Pavg Submit Request Answer Part D What is the average net power input during the interval from t = 2.1s to t = 4.0s? Express your answer...
Ka value is not given in the question, solve for Ka to answer
the question
Part C Calculate [H3O+] of the following polyprotic acid solution: 0.130 MH3C6H5O7. Express your answer using two significant figures. IVO ALOM O O ? [H3O+]= Submit Request Answer
Exercise 13.36 with eText link 1 of 10 ㎜ Review 1 Constants Periodic Table Part A Refer to Figure 13.4 in the textbook to determine whether each of the given amounts of solid will completely dissolve in the given amount of water at the indicated temperature. Check all that apply 15.0 g KCIO3ìn 115 g of water at 25°C 5o.0 g Pb(NO3)2 in 95.0 g of water at 10 C 45.0 g CaCl2 in 105 g of water at 5°C...
The position of a mass oscillating on a spring is given by x = (7.0cm) cos (21t/ (0.50s)]. You may want to review (Pages 421 - 424). Part A What is the frequency of this motion? Express your answer using two significant figures. V AE O 2 ? Submit Request Answer Part B When is the mass first at the position x = -7.0cm ? Express your answer using two significant figures. VO ALQ R O 2 ? Submit Request...
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