Question

Elemental calcium is produced by the electrolysis of molten CaCl2. Part A What mass of calcium...

Elemental calcium is produced by the electrolysis of molten CaCl2.

Part A

What mass of calcium can be produced by this process if a current of 6100 A is applied for 36 h ? Assume that the electrolytic cell is 72 %efficient.

Express your answer using two significant figures.

Part B

What is the minimum voltage needed to cause the electrolysis?

Express your answer using three significant figures.

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Calculate the mass of Li formed by electrolysis of molten LiCl by a current of 7.7×104...
Calculate the mass of Li formed by electrolysis of molten LiCl by a current of 7.7×104 A flowing for a period of 25 h . Assume the electrolytic cell is 79 % efficient. Express your answer using two significant figures. Answer in terms of gLi Part B What is the minimum voltage required to drive the reaction? Express your answer using two significant figures.
Calculate the mass percent, % (m/m), for the solute in each of the following solutions. Part...
Calculate the mass percent, % (m/m), for the solute in each of the following solutions. Part A 24 g of KCl and 100 g of H2O Express your answer using two significant figures. Part B 11 g of sugar in 200 g of tea with sugar (solution) Express your answer using two significant figures. Part C 6.0 g of CaCl2 in 65.0 g of CaCl2 solution Express your answer using two significant figures.
Part A Determine the mass of CO2 produced by burning enough of methane to produce 1.00×102kJ...
Part A Determine the mass of CO2 produced by burning enough of methane to produce 1.00×102kJ of heat. CH4(g)+2O2(g)→CO2(g)+2H2O(g)ΔH∘rxn=−802.3kJ Express your answer using three significant figures. Part B Determine the mass of CO2 produced by burning enough of propane to produce 1.00×102kJ of heat. C3H8(g)+5O2(g)→3CO2(g)+4H2O(g)ΔH∘rxn=−2217kJ Express your answer using three significant figures. Part C Determine the mass of CO2 produced by burning enough of octane to produce 1.00×102kJ of heat. C8H18(l)+25/2O2(g)→8CO2(g)+9H2O(g)ΔH∘rxn=−5074.1kJ Express your answer using three significant figures.
Part A Determine the mass of CO2 produced by burning enough of methane to produce 2.25×102kJ...
Part A Determine the mass of CO2 produced by burning enough of methane to produce 2.25×102kJ of heat. CH4(g)+2O2(g)→CO2(g)+2H2O(g)ΔH∘rxn=−802.3kJ Express your answer using three significant figures. Part B Determine the mass of CO2 produced by burning enough of propane to produce 2.25×102kJ of heat. C3H8(g)+5O2(g)→3CO2(g)+4H2O(g)ΔH∘rxn=−2217kJ Express your answer using three significant figures. Part C Determine the mass of CO2 produced by burning enough of octane to produce 2.25×102kJ of heat. C8H18(l)+25/2O2(g)→8CO2(g)+9H2O(g)ΔH∘rxn=−5074.1kJ Express your answer using three significant figures. Part D...
Which of the following reactions don't occur spontaneously and can be brought about only through electrolysis,...
Which of the following reactions don't occur spontaneously and can be brought about only through electrolysis, assuming that all reactants and products are in their standard states? (a) 2H2O(l)→2H2(g)+O2(g) [in 1 M H+(aq)] (b) Zn(s)+Fe2+(aq)→Zn2+(aq)+Fe(s) (c) 2Fe2+(aq)+I2(s)→2Fe3+(aq)+2I−(aq) (d) Cu(s)+Sn4+(aq)→Cu2+(aq)+Sn2+(aq) SubmitMy AnswersGive Up All attempts used; correct answer displayed Correct answer is a,c,d Part B For the reaction (a), what is the minimum voltage required? Express your answer to three decimal places and include the appropriate units. E∘cell = SubmitMy AnswersGive...
A) What is the rms current in a series RC circuit if R = 3.4 kΩ...
A) What is the rms current in a series RC circuit if R = 3.4 kΩ , C = 0.87 μF , and the rms applied voltage is 100 V at 38 Hz ? Express your answer using two significant figures. Irms =   A   SubmitRequest Answer Part B What is the phase angle between voltage and current? Express your answer using two significant figures. ϕ =   ∘   SubmitRequest Answer Part C What is the power dissipated by the circuit? Express...
Calculate the mass percent composition of each of the following: Part A 0.730 g of Ba...
Calculate the mass percent composition of each of the following: Part A 0.730 g of Ba and 1.11 g of Br Express your answers using three significant figures. Provide the mass percent for Ba first, and then Br second. Separate the values with a comma. For example: 45.0, 55.0 Mass%:Ba,Br = % Part B 3.69 g of K and 1.27 g of I Express your answers using three significant figures. Provide the mass percent for K first, and then I...
1) Elemental S reacts with O2 to form SO3 according to the reaction 2S+3O2→2SO3 A) How...
1) Elemental S reacts with O2 to form SO3 according to the reaction 2S+3O2→2SO3 A) How many O2 molecules are needed to react with 3.25 g of S? B) What is the theoretical yield of SO3 produced by the quantities described in Part A? 2) 1.05 g H2 is allowed to react with 9.71 g N2, producing 1.15 g NH3. A) What is the theoretical yield in grams for this reaction under the given conditions? Express your answer to three...
Part A What is the H+ concentration for an aqueous solution with pOH = 2.73 at...
Part A What is the H+ concentration for an aqueous solution with pOH = 2.73 at 25 ∘C? Express your answer to two significant figures and include the appropriate units. Part C At a certain temperature, the pH of a neutral solution is 7.90. What is the value of Kw at that temperature? Express your answer numerically using two significant figures.
Hydrobromic acid dissolves solid iron according to the following reaction: Fe(s)+2HBr(aq)→FeBr2(aq)+H2(g) Part A: What mass of...
Hydrobromic acid dissolves solid iron according to the following reaction: Fe(s)+2HBr(aq)→FeBr2(aq)+H2(g) Part A: What mass of HBr (in g) would you need to dissolve a 2.6 −g pure iron bar on a padlock? Express your answer using two significant figures. Part B: What mass of H2 would be produced by the complete reaction of the iron bar? Express your answer using two significant figures.
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT