Equilibrium

The equilibrium constant for Kc for the reaction shown is 54.3 at 430 degrees C. H2(g) = I2(g) = 2 HI(g) At the start if the reaction there are 0.714 moles of H2, 0.984 mole of I2 and 0.886 mole of HI in a 2.00 liter reaction chamber. At equilibrium, what are the concentrations of the gases- [ ...continues

Balanced Equations

1. Write the balanced equation for the first step in the reaction between vinegar and baking soda, with carbonic acid (H2CO3) as a product. What type of reaction is this? 2. Write the balanced equation for the second step in the reaction, the liberation of carbon dioxide from carbonic acid. What type of reaction is this? 3. Wr ...continues

Differences between aluminum sulfate and aluminum hydroxide as a flocculant in water treatment?

Can aluminum sulfate and aluminum hydroxide be used interchangeably as a flocculant and have the same effectiveness when attempting to floc various cations and anions that are in the form of dissolved solids? Or does the presence of the SO4^-2 ion vs. the OH^-1 ion have more floc capability because of its larger ionic charge? ...continues

Five physical chemistry questions.

5) Ozone decomposes to oxygen according to the balance chemical equation below: 2O3 ---> 3O2 If the rate of disappearance of the ozone is -7.2E-4 M/s, what is the rate of formation of oxygen? 6) If 100kJ of heat is added to 54.0 g of water at 100°C, what is the final state of the water? MW H2O = 17.9 g/mole 7) How many ...continues

Crystal Field Theory: High Spin and Low-Spin Complexes and Isomers of Cooordinate Compounds.

1 (a) Write a structural formula for two different isomers of [Co(H2O)2(en)2]Cl2. Indicate the oxidation state of the Co in each case. (b) For the complexes in (a) above, draw a crystal field energy level diagram for either isomer, and indicate the electron distribution for (i) a high spin complex, and (ii) a low spin complex ...continues

Separating and Testing Sodium Carbonate, Chloride and Sulphate

Assuming an imaginary mixture of sodium chloride, sodium carbonate and sodium sulphate I need to know what test to use to 1st confirm the the compostion and 2nd to find the percentage composition mixture. I need to know which test would be useful and the calaulations needed so I can preform the in the lab.

Structure and Solubility of Zinc Borate

The plant that I work at uses a zinc borate (US Borax) compound whose chemical formula is 2ZnO-3H2BO3-3.5H2O ----- essentially a hydrated mixture of zinc oxide, boric acid, and water to form the granular zinc borate.We use it as a wood preservative and must keep it in an insoluble form in our process chemistry. My question ho ...continues

Calculating solubility of zinc oxide, boric acid, and aluminum sulfate at different pH values

Hope you can help....I've always struggled calculating solubilities of compounds at different pH's. I have 3 separate but related questions: 1) 1000 g of zinc oxide is added to a 1 liter container of pH neutral water (pH 7.0); the solubility of the ZnO is given as .29 g/L at pH 7.0; how much more ZnO would dissolve if the pH ...continues

Determining weight %; ppm by mass; and solubility of alum?

Problem Statement: Chemical XYZ is added to a substrate at a defined rate of 1.17% of the dry weight of the substrate; paper makers alum (Al2(SO4)3-14H2O) is added to the substrate at a rate of 45% of the Chemical XYZ rate; the dry weight of the substrate is given as 1460 lbs/1000 ft2 The molecular weight of the alum is g ...continues

Why do Solutions of Ions Conduct Electricity?

1) Name this compound: Bel2 2) Solid salt does not conduct electricity. How then does dissolving salt in water allow electricity to flow?