Nitrogen(II) oxide reacts with chlorine according to the equation: 2NO(g) + Cl2(g) – 2NOCI(g) The following initial rates of reaction have been observed for certain reactant concentrations: [NO] (mol/L) [C,] (mol/L) Rate (mol/L/h) 0.50 0.50 1.14 1.00 0.50 4.56 1.00 1.00 9.12 What is the rate equation that describes the rate's dependence on the concentrations of NO and Cl2? What is the rate constant? What are the orders with respect to each reactant?

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tter What solid was formed: Copper (II) ions (from CuSO4) react with solid Appearance of copper sulfate: Appearance of zinc: Appearance after 10 min: Appearance after 20 min: Balanced reaction: Type of reaction: 0 min Lab 5 pg. 3 Zinc metal Cu²+ (aq) + Zn () About 10-20 mL of copper sulfate solution are added to two beakers. Note the appearance of the solution. Zinc is added to one beaker (the other is reference control). Note the appearance after 10 and 20 minutes in comparison to 0 min. (reference control). 10 min CuSO4 (aq) + 20 min Zn (s) → Ed: January 2032 ZnSO4 (aq) + Cu (s) In general, salts are soluble in water. In some cases, the forces that hold the salt together are too strong for the water molecules to pull apart. These are called insoluble salts. You can tell if you have an insoluble salt by the formation of a precipitate when combining solutions of soluble salts, or a gas is evolved (observed as gas bubbles, or a foam). For the following reactions, the indicated solutions…

For the reaction of :   2 H2O2 (g) →        2 H2O (g)   +    O2 (g),     consider this data table,  What is the average rate of reaction between 40 and 50 s for hydrogen peroxide?  Time (s) H2O2 (M) 0 1.000 10 0.747 20 0.561 30 0.403 40 0.298 50 0.214     -0.0084 M/s     0.0042 M/s     0.0168  M/s     0.214 M/s     0.0084 M/s