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1. Write a net ionic equation, including states for teh reaction of Cobalt (II) Chloride and Silver Nitrate
2. Circle the species in which nitrogen has the highest oxidation number
N2 NH3 HNO2 NO2- NANO3
3. Circle the compound that has the atom with the highest oxidation number?
CaS Na3N MgSO3 Al(NO2)3 NH4Cl
4. A 3.82g sample of magnesium nitride is reacted with 7.73 g of water.
Mg3N2 + 3H2O ------>2NH3 + 3MgO
The yield of MgO is 3.60g. What is the percent yield in the reaction?
5. Calculate the Heat of Reaction for the following reaction using Heats of Formation AND Bond Energies (using the tables and appendices in your book). Explain why there might be a difference in these calculated values.
2C6H6 (l) + 15O2 (g) -----> 12CO2(g) + 6H2O (l)
Calculate the molarity of each of the following solutions(a) 29.0 g of ethanol (C2H5OH) in 545 mL of solution.
A piece of metal of mass 27 g at 99?C is placed in a calorimeter containing 45.1 g of water at 21?C. The final temperature of the mixture is 38.7?C.
In the chemical kinetics experiment, describe how you plan to mix the dye and bleach to start the reaction and when you expect to start recording the time? Include the volumes of dye and bleach solution you intend to mix? How are you going to make..
Metallic COpper is formed when aluminum reacts with copper(ii) sullfat. How many grams of metallic copper can be obtained when 54.0 G 0f Al react with 319 G of CuSO4?
Write the reactions responsible for the LIQUID PHASE oxidation of S(IV) to S(VI), and show how the oxidation can lead to a decrease in pH of rain water.
The balloon is designed to continue its ascent to an altitude of 30 km, where it bursts, releasing a package of meteorological instruments that parachute back to Earth.
Calculating Rate and Activation Energy of Diffusion, a) How do I calculate the time that will it take for 0.001 moles of CO2 to leak from a container at steady-state, assuming that the amount of CO in the surroundings is insignificant?
determine the amount of heat required to convert 2.3 mol of ice at -13.1 degrees celcius to liquid water at 21.6 degrees celcius.
Using a liquid sample of Na that has a molar heat of fusion of 2.06 kj/mol calculate the number of moles in a liquid sample of Na if sample releases 41.4 kj when it freezes?
What is the pH of the benzoic acid solution prior to adding sodium benzoate? Express answer using 3 significant figures. 2. How many grams of sodium benzoate should be added to prepare the buffer?
What statement in incorrect about the following pairs of sugars? Galactose and mannose are diastereomers
Calculate the radius of the metal atom. A hypothetical metal has a face-centered cubic unit cell with the edge length of 4.943 Å.
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