If an aqueous solution of HNO3 is electrolyzed for 38.00 min at a steady current of...

If an aqueous solution of HNO3 is electrolyzed for 38.00 min at a steady current of 1.29 A, what volume of H2 (g) at 25.0oC and 0.99 atm will be collected at the cathode? vol H2 (L) =

Solutions

Expert Solution

Q= I *t

= 1.29*38*60

= 2941.19columbs

2 H^+ + 2e^-1--------------------> H2

2*96500 COLUMBS OF ELECTRICITY IS PASSED ---------------------------------------------- 22.4lit of H₂ gas

2941.19 columbs of electricity passed ------------------------------------------------------------ ?

= 2941.19*22.4/(2*965000

= 0.034 litres of HYDROGEN GAS

P1=1 atm

V1= 0.034litres

T1= 273K

P2=0.99atm

T2= 298K

V2= ?

P1V1/T1= P2V2/T2

1*0.034/273=0.99*V2/298

V₂= 0.037litres

queen_honey_blossom answered 1 year ago

Next > < Previous

Related Solutions

If an aqueous solution of HNO3 is electrolyzed for 23.00 min at a steady current of...

If an aqueous solution of HNO3 is electrolyzed for 23.00 min at a steady current of 1.61 A, what volume of H2 (g) at 25.0oC and 0.99 atm will be collected at the cathode?

A Cr3+(aq) solution is electrolyzed, using a current of 7.00 A . a. What mass of...

A Cr3+(aq) solution is electrolyzed, using a current of 7.00 A . a. What mass of Cr(s) is plated out after 2.00 days? b. What amperage is required to plate out 0.230 mol Cr from a Cr3+ solution in a period of 8.00 h ?

A Cr3+(aq) solution is electrolyzed, using a current of 8.00 A . What amperage is required...

A Cr3+(aq) solution is electrolyzed, using a current of 8.00 A . What amperage is required to plate out 0.260 mol Cr from a Cr3+ solution in a period of 8.40 h ?

Predict the half-cell reactions that occur when aqueous solutions of the following salts are electrolyzed in...

Predict the half-cell reactions that occur when aqueous solutions of the following salts are electrolyzed in a cell with inert electrodes. What is the overall cell reaction in each case? A) anode reaction for LiCl B)cathode reaction for LiCl C)overall cell reaction for LiCl D)anode reaction for CuSO4 E)cathode reaction for CuSO4 F) overall cell reaction for CuSO4 G) anode reaction for K2SO4 H) cathode reaction for K2SO4 I) overall cell reaction K2SO4

HCl and HNO3 have the same strength in aqueous solutions. This is an example of the...

HCl and HNO3 have the same strength in aqueous solutions. This is an example of the leveling effect. True or False

6) A solution of sodium chloride (molecular weight 58.5) is electrolyzed and it is found that...

6) A solution of sodium chloride (molecular weight 58.5) is electrolyzed and it is found that a current of 1 A liberates 1.3 x 10-3 kg of chlorine (atomic weight 35.5) in one hour. Sodium chloride crystals of density 2.17 x 103 kg/m3 are analyzed by x rays and the unit cell parameter is found to be 5.6 x 10-10 m. From these data calculate the charge on a monovalent ion. 7) In a Milikan oil-drop experiment, a certain droplet...

Molten ZnBr2 is electrolyzed by passing a current of 15.0 A through an electrolysis cell for...

Molten ZnBr2 is electrolyzed by passing a current of 15.0 A through an electrolysis cell for a certain length of time. In this process, 45.75g Br2 are deposited_________( anode or cathode). How long does this process require? What is the chemical reaction taking place at the other electrode? What mass of the second product is released at the other electrode?

When an aqueous solution of 7.00 g of BaCl2 was added to an aqueous solution of...

When an aqueous solution of 7.00 g of BaCl2 was added to an aqueous solution of 5.25 g of K2SO4, a white precipitate formed. After filtering and drying the precipitate, 6.85 g of BaSO4 powder was obtained. BaCl2 (aq) + K2SO4(aq) BaSO4(s) + 2 KCl (aq) What is the theoretical yield of BaSO4? SHOW ALL WORK. What is the percent yield of BaSO4? SHOW ALL WORK In determining the concentration of a sulfuric acid solution, 32.63 mL of a 0.100...

An HNO3(aq) solution has a pH of 1.61. What is the molar concentration of the HNO3(aq)...

An HNO3(aq) solution has a pH of 1.61. What is the molar concentration of the HNO3(aq) solution?

When an aqueous solution of strontium chloride is added to an aqueous solution of potassium sulfate,...

When an aqueous solution of strontium chloride is added to an aqueous solution of potassium sulfate, a precipitation reaction occurs. Write the balanced net ionic equation of the reaction.

Subjects