1. In an electrolysis of a solution containing Ni2+ (aq), metallic Ni(s) deposits on the cathode. Using a current of 0.150 A for 12.2 minutes, a. How many coulombs of charges flow by the given current over the specified time interval? b. How many moles of electrons are transferred? c. What mass of nickel will form? 2. Ten grams of calcium is formed by passing a current of 3.5 A through molten CaCl2. a. How many moles of electrons are transferred? b. How many coulombs of charges flow by the given current? c. How many minutes are needed to plate out the 10 grams of calcium? 3. A lead storage battery delivers a current of 6 A for one hour and 22 minutes at a voltage of 12 V. Pb(s) + PbO2(s) + 2SO42-(aq) + 4H+ → 2PbSO4 (s) + 2H2O a. How many grams of Pb are converted to PbSO4? b. How much electrical energy is produced in kilow
1. In an electrolysis of a solution containing Ni2+ (aq), metallic Ni(s) deposits on the cathode. Using a current of 0.150 A for 12.2 minutes, a. How many coulombs of charges flow by the given current over the specified time interval? b. How many moles of electrons are transferred? c. What mass of nickel will form? 2. Ten grams of calcium is formed by passing a current of 3.5 A through molten CaCl2. a. How many moles of electrons are transferred? b. How many coulombs of charges flow by the given current? c. How many minutes are needed to plate out the 10 grams of calcium? 3. A lead storage battery delivers a current of 6 A for one hour and 22 minutes at a voltage of 12 V. Pb(s) + PbO2(s) + 2SO42-(aq) + 4H+ → 2PbSO4 (s) + 2H2O a. How many grams of Pb are converted to PbSO4? b. How much electrical energy is produced in kilow
1. In an electrolysis of a solution containing Ni2+ (aq), metallic Ni(s) deposits on the cathode. Using a current of 0.150 A for 12.2 minutes, a. How many coulombs of charges flow by the given current over the specified time interval? b. How many moles of electrons are transferred? c. What mass of nickel will form? 2. Ten grams of calcium is formed by passing a current of 3.5 A through molten CaCl2. a. How many moles of electrons are transferred? b. How many coulombs of charges flow by the given current? c. How many minutes are needed to plate out the 10 grams of calcium? 3. A lead storage battery delivers a current of 6 A for one hour and 22 minutes at a voltage of 12 V. Pb(s) + PbO2(s) + 2SO42-(aq) + 4H+ → 2PbSO4 (s) + 2H2O a. How many grams of Pb are converted to PbSO4? b. How much electrical energy is produced in kilow
1. In an electrolysis of a solution containing Ni2+ (aq), metallic Ni(s) deposits on the cathode. Using a current of 0.150 A for 12.2 minutes, a. How many coulombs of charges flow by the given current over the specified time interval? b. How many moles of electrons are transferred? c. What mass of nickel will form? 2. Ten grams of calcium is formed by passing a current of 3.5 A through molten CaCl2. a. How many moles of electrons are transferred? b. How many coulombs of charges flow by the given current? c. How many minutes are needed to plate out the 10 grams of calcium? 3. A lead storage battery delivers a current of 6 A for one hour and 22 minutes at a voltage of 12 V. Pb(s) + PbO2(s) + 2SO42-(aq) + 4H+ → 2PbSO4 (s) + 2H2O a. How many grams of Pb are converted to PbSO4? b. How much electrical energy is produced in kilowatt hours? 4. A baby’s spoon with a surface area of 6.25 cm2 is plated with silver from AgNO3 using a current of 2 A for two hours and 25 minutes. a. How many grams of silver are plated? b. What is the thickness of the silver plate formed? (density of silver =10.5 g/cm3)
Transcribed Image Text:1. In an electrolysis of a solution containing NIP (, metallic Niu deposits on the cathode. Using a current of 0.150 A for
12.2 minutes,
a. How many coulombs of charges flow by the given current over the specified time interval?
b. How many moles of electrons are transferred?
c. What mass of nickel will form?
2. Ten grams of cakcium is formed by passing a current of 3.5 A through molten Caa,
a. How many moles of electrons are transferred?
b. How many coulombs of charges flow by the given current?
c. How many minutes are needed to plate out the 10 grams of calcium?
3.
A lead storage battery delivers a current of 6 A for one hour and 22 minutes at a voltage of 12 V.
Pbo+ PbO + 250 m + 4H' → 2PBSO. + 2H,0
How many grams of Pb are converted to PbSO,?
How much electrical energy is produced in kilowatt hours?
a.
b.
4. A baby'sspoon with a surface area of 6.25 cm? is plated with silver fram AgNO, using a current of 2 A for two hours
and 25 minutes.
a.
How many grams of silver are plated?
b. What is the thickness of the silver plate formed? (density of silver 10.5 g/cm')
Definition Definition Process of breaking down ionic compounds into their constituent elements by passing a direct electric current through the compound in a fluid state.
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