Question

In: Chemistry

A piece of titanium metal was anodized for 30.0 minutes, producing 10.0 g of TiO2. What...

A piece of titanium metal was anodized for 30.0 minutes, producing 10.0 g of TiO2. What current was used?

Solutions

Expert Solution

time (t) = 30 min = 30 x 60 = 1800 sec

weight (w) = 10 g

Ti atomic weight = 47.87

Ti equivalent weight (E) = atomic weight / 4                        (TiO2 -------> Ti+4 )

                                       = 47.87 / 4

                                        = 11.96

1 Faraday = 96500 C

Faraday equation

w = E x i x t / 96500

i = w x 96500 / E x t

   = 10 x 96500 / 11.96 x 1800

    = 44.82 A                             (A= ampere)

current (i) = 44.82 A

queen_honey_blossom answered 1 year ago
Next > < Previous

Related Solutions

The combustion of titanium with oxygen produces titanium dioxide: Ti(s) + O2(g) → TiO2(s) When 0.515...
The combustion of titanium with oxygen produces titanium dioxide: Ti(s) + O2(g) → TiO2(s) When 0.515 g of titanium is combusted in a bomb calorimeter, the temperature of the calorimeter increases from 25.00°C to 47.00°C. In a separate experiment, the heat capacity of the calorimeter is measured to be 9.84 kJ/K. The heat of reaction for the combustion of a mole of Ti in this calorimeter is ________ kJ/mol. 3.32 1.66 -0.154 -2.00 × 104 -311
To make 10X gel electrophoresis running buffer, 30.0 g Tris base, 144.0 g glycine, and 10.0...
To make 10X gel electrophoresis running buffer, 30.0 g Tris base, 144.0 g glycine, and 10.0 g SDS must be dissolved into 1000 mL water. The working stock is a 1X concentration. a. What is the concentration in % w/v of each of the 3 reagents in the 10X stock? b. Describe how you would make 1 L of a 1X working stock solution. c. If 50 mL of the 1X working stock are used to run a gel, how...
To make 10X gel electrophoresis running buffer, 30.0 g Tris base, 144.0 g glycine, and 10.0...
To make 10X gel electrophoresis running buffer, 30.0 g Tris base, 144.0 g glycine, and 10.0 g SDS must be dissolved into 1000 mL water. The working stock is a 1X concentration. a. What is the concentration in % w/v of each of the 3 reagents in the 10X stock? b. Describe how you would make 1 L of a 1X working stock solution. c. If 50 mL of the 1X working stock are used to run a gel, how...
A 25 g piece of metal is dropped into 100.0 g sample of water. The water...
A 25 g piece of metal is dropped into 100.0 g sample of water. The water temperature drops by 5.0 C. The piece of metal's temperature increases by 85 C. What is the specific heat of this piece of metal? (The specific heat of water is 4.18 J/gC)
A student heats a piece of 130 g of an unknown greyish metal to a temperature...
A student heats a piece of 130 g of an unknown greyish metal to a temperature of 99.2 celcius. she places the metal in a styrofoam cup that contains 55.7 g of water at a temperature of 23.0 celsius. the hot metal heats up the water in the cup to 31.4 celcius. calculate the specific heat of the metal?
7. A piece of zinc metal with a mass of 35.0 g is heated in boiling...
7. A piece of zinc metal with a mass of 35.0 g is heated in boiling water to 101.3 ºC and then dropped into a coffee-cup calorimeter containing 75.0 g of water at 23.8 ºC. When thermal equilibrium is reached, the final temperature is 27.0 ºC. Calculate the specific heat capacity of the zinc.
A 10.0 g piece of pure aluminum is placed in 75.0 mL of 0.54 M hydrochloric...
A 10.0 g piece of pure aluminum is placed in 75.0 mL of 0.54 M hydrochloric acid at STP condition. They react as follows: 2Al + 6HCl → 3H2(g) + 2AlCl3 Calculate the following: a. Volume, in liters, of hydrogen gas. b. Molarity of Al+3. (Assume 75.0 mL solution.) c. Molarity of Cl–. (Assume 75.0 mL solution.)
DYE-SENSITIZED TIO2 SOLAR CELL 3) What is one advantage of using titanium dioxide powder rather than...
DYE-SENSITIZED TIO2 SOLAR CELL 3) What is one advantage of using titanium dioxide powder rather than a sheet of titanium dioxide?
A piece of metal (mass = 18.300 g) is placed in 11.00 mL of chloroform (d...
A piece of metal (mass = 18.300 g) is placed in 11.00 mL of chloroform (d = 1.498 g/mL) in a 25-mL graduated cylinder. The chloroform level increases to 15.46 mL. The best value for density of this metal from these data is
1. A 30 g piece of metal (160.9 g/mol) melts at 1,560°C and its enthalpy of...
1. A 30 g piece of metal (160.9 g/mol) melts at 1,560°C and its enthalpy of fusion is 12.6 kJ/mol. Calculate the entropy of fusion (J/k) per mole of the metal. 2. The temperature of a 374 g piece of granite is increased from 38.4°C to 62.6°C. What is its change in entropy (J/K)? The specific heat capacity of granite is 0.790 J/g.K.
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT