1. Questions

chemistry--please help!

How many minutes does it take to produce 10.0L of oxygen gas (at standard conditions)
by electrolyzing neutral water with a current of 1.3 A? What is the corresponding volume
of hydrogen gas produced?

thanks so much

  1. 👍
  2. 👎
  3. 👁
Wade

  1. 2H2O ==> 2H2 + O2
    10.0 L O2 at STP = 10/22.4 mols = 0.446 mols or 0.446 x 32 = 14,3 grams O2.
    96,485 coulombs will produce 32/4 = 8 g O2 so
    coulombs needed = 96,485 x (14.3/8) = ?
    Coulombs = amperes x seconds = 1.3*seconds. Plug in coulombs and A and solve for seconds. Convert to minutes. Post your work if you get stuck.

    1. 👍
    2. 👎
    DrBob

Respond to this Question

First Name

Your Response

Similar Questions

  1. Ap chemistry

    The standard enthalpy of formation of Mn2O3 is −962.3 kJ/mol. How much heat energy is liberated when 6.4 grams of man- ganese are oxidized by oxygen gas to Mn2O3 at standard state conditions? Answer in units of kJ

  2. chemistry

    Ammonia chemically reacts with oxygen gas to produce nitric oxide and water . What mass of ammonia is consumed by the reaction of 4.5g of oxygen gas? Round your answer to significant digits.

  3. statistics

    Times for a surgical procedure are normally distributed. There are two methods. Method A has a mean of 28 Minutes and a standard deviation of 4 minutes, while B has a mean of 32 minutes and a standard deviation of 2 minutes.

  4. chemistry

    What are the skeleton equations for Dicarbon hexahydride gas + oxygen gas --> carbon dioxide gas + gaseous water And Solid barium and chlorine gas react to produce solid barium chloride

  1. Chemisry

    Write a balanced equation using the correct formulas and include conditions (s,l,g or aq) for each of the following reactions. 1)Carbon monoxide gas reacts oxygen gas to produce carbon dioxide gas. Express your answer as a

  2. Chemistry Balancing Equations

    Can you please tell me if these are correct? 1. Sodium Hydrogen Sulfite reacts with hydrochloric acid to produce sulfur dioxide gas, water and sodium chloride NaHSO3 + HCl -----> SO2 + H2O + NaCl 2. Sodium nitrate reacts with

  3. AP Chemistry

    The standard enthalpy of formation of Mn2O3 is −962.3 kJ/mol. How much heat energy is liberated when 6.5 grams of manganese are oxidized by oxygen gas to Mn2O3 at standard state conditions? Answer in units of kJ

  4. chemistry

    1)how many molecules of water are needed to produce 6 molecules of C6H12O6 according to the equation 6CO2(G)+6H2O(L)+energy TO C6H12O6(S)+6O2(G)? 2)how many mole of oxygen gas are produce when 6 mol of CO2 are consumed in the

  1. chemistry

    ammonia (NH3) chemically reacts with oxygen gas (O2) to produce nitric oxide (NO) and water (H2O). What mass of water is produced by the reaction of 1.09g of oxygen gas?

  2. college chemistry

    solid diarsenic trioxide reacts with Flourine gas to produce liquid arsenic pentaflouride and oxygen gas. Write the Qc for this reaction

  3. Chemistry - please help!

    The decomposition of KClO3 produces oxygen gas and solid KCl. What mass of KClO3 must be decomposed to produce 126 L of oxygen gas at 133 Celsius and .88 atm? I know I need to use PV=nRT but I can't figure out how.

  4. Chemistry

    Many power plants produce energy by burning carbon-based fuels, which also produces CO2. CO2 is a greenhouse gas, so over-production can have negative effects on the environment. Use enthalpy of formation data to calculate the

You can view more similar questions or ask a new question.