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1.each of the following processes is a likely change in a redox reaction. Label the chemical change as an oxidation process, a reduction process, or neither
a. CIO2- -> CIO3-b. Co^3+ -> Co^2+c. Cr2O7^2- ->Cr^3+d. SO3 -> SO4^2-e. H+ ->H2
2. Based upon your experiences, would you predict a reaction to occur when
a. zinc metal is placed into a solution containing silver ion, Ag+? explain
b. gold metal is placed into a solution containing zinc ion, Zn^2+? explain
At 4.00 rm L, an expandable vessel contains 0.864 mol of oxygen gas. How many liters of oxygen gas must be added at constant temperature and pressure if you need a total of 1.96 mol of oxygen gas in the vessel.
A pH of 3.74 is reached when 18.50 mL of sodium hydroxide has been added to the acid solution. What is the molar mass of formic acid given this data?
Describe the mechanism of the preparation of 2-methyl-3-hexanol by reducing an appropriate carbonyl compound.
determine the evaporator temperature at which a single-stage R22 plant will cease to produce any refrigerating effect in delhi where the condenser temperature is 42 degree C
another part says spectra of caffeine, benzoic acid, and a mountain dew sample in 0.10 M HCl. On a graph it has the points 8.74 mg/L for benzoic acid, 1.5 dilution for mountain dew soda,
At 20 Celsius, a saturated solution of NaCl in water has a concentration of 380 g of sodium chloride per liter of solution. How many g of NaCl are required to make 4 L of the saturated solution? Which is the solute and which is the solvent in this..
When two atoms of 2H (deuterium) are fused to form one atom of 4He (helium), the total energy evolved is 3.83 × 10-12 joules. What is the total change in mass
Some ice cubes at 0 degrees C with a total mass of 379g are placed in a microwave oven and subjected to 750. W (750. J/s)of energy for 5.00 minutes. (Assume all energy of the microwave is absorbed by the water and no heat loss by the water.)
A galvanic cell is constructed that has a zinc anode immersed in a Zn(NO3)2 solution and a platinum cathode immersed in an NaCl solution equilibrated with Cl2 gas at 1 atm and 25 degrees centigrade.
400 ml of .50 M HNO3 is added to 200 ml of water. if 100% dissociation occurs, find the resulting pH.
How much heat (in Joules) is gained by the water where a chemical reaction takes place in 100 mL aqueous solution and has a temperature increase of 14C? [hint: ignore any effects by the calorimeter]
the gas can be treated as a) an ideal gas, b) a real gas. The critical pressure and critical temperature of propane are Pc = 42.5 bar and Tc=370 K, respectively.
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