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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)
how fast must a 144.1g baseball travel in order to have a de Broglie wavelength that is equal to that of an x-ray photon with = 73 pm?
Calculate the mass of formed from the unbalanced reaction? A solution is prepared by mixing 100.0 mL of 0.45 M NaCl, 100 mL of 0.082M, and enough to bring the total volume to 400.0 mL
Alcohols are less volatile than ethers of the same molecular weight, but the two classes of compounds have approximately the same solubility in water because:
The activation energy of a certain reaction is 50.0 . At 22 , the rate constant is . At what temperature in degrees Celsius
The reaction previously done was just having trans-cinnamic acid reacted with Br2 forming all the isomers with the double bond being broken and Br put into place.
calculate the temperature (in EC) at which the vapor pressure is 760 torr. The vapor pressure of Ethanol is 115 torr at 34.9EC
we determined that the sample contained 5.34mol of oxygen. If all of this oxygen were converted to a gas at 24 degrees celcius and 770mmHg of pressure, what volume would it occupy?
A steel tank has a volume of 438 L and is filled with 0.885 kg of oxygen. calculate the pressure of oxygen at 69.8 fahrenheit.
a mass of 2.50 g of hydrated copper sulfate is placed in a crcible and heated. on heating, 1.59 g of white anhydrous copper sulfate is left behind. determine the ratio of water to copper sulfate.
Propose a neutral structure for each compound that is consistent with the data. Note that the absolute stereochemical configurations of chiral substances cannot be determined from the data. Arbitrarily draw a configuration for an enantiomer (and b..
What are the molecular weights of ether and dimethylether? Are they isomers of each other or is each an isomer of something else? Why are there significant differences in their chemical and physical properties?
A 347 mL container holds 0.146 g of Ne and an unknown amount of Ar at 35°C and a total pressure of 630. mmHg. Calculate the moles of Ar present.
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