hard

  1. E

    Hard Kp Question!

    The table below shows initial pressures before equilibration at 600K. Calculate the equilibrium pressures. Assume that the total gas pressure is kept constant. Initial p(A) - 10.0 atm Initial p(B) - 10.0 atm Initial p(C) - 0.0 atm What I have so far: Since total pressure remains the same the...
  2. A

    What Would Chlorine React With?

    If I had a box that had inside it a UV light an equal quantity of ozone (O3), and H3O+, which would be broken down because of the UV light to O, and O2, as well as H2O, and H+ because that is what the H3O+ would be broken down into. If I introduced one hypochlorite Ion (ClO−) or a chloride Ion...
  3. A

    What is the number of molecules in 500 cm^3 of oxygen under room conditions?

    And how do we solve this kind of problem?
  4. M

    Hard gas law problem

    Hello can someone please solve this problem for me step by step and show as much work and calculation and reasoning as possible. Assume that you are trying to show how the problem can be solved to another student who does not understand what you are doing. Thank you. 1. Trimethyl aluminum...
  5. S

    Creating hard water

    I have to make potable hard water with the greatest bioavailability to the specifics of 150-200mg calcium per liter and 75-100mg per liter of magnesium. What is better to use, rocks (limestone, etc), household products (baking soda, etc) or salts (gypsym, etc). I know bioavailability and potable...
  6. K

    Hard Chemistry problem Updated! Help Please!

    The sun supplies about 1.0 k W/m2 ( 1.0 W = 1 J/s). Plants are able to produce 0.20g of sucrose (C12H22O11) per square meter of leaf from carbon dioxide and water. Working from the standard heats of formation, calculate the percentage of sunlight per hour that is used to produce sucrose. Can...
  7. H

    What are each steps of the reaction? I am having a really hard time with this!

    The first step included combining chromium chloride hexahydrate and dimethylsulfoxide together and heating at 190 degrees Celsius (a gas was formed, solution turned a violet colour), and the solution was cooled to 70 degrees Celsius. Then, 0.5 mL of ethylenediamine in 1.0 mL of ethanol was...