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CHEMYSTRY HOMEWORK
1) In the reaction where the potassium chlorate is decomposed into potassium chloride and oxygen. How much oxygen can be made from 45.8g of the potassium chlorate?
2) What solution (ion) can be added to the following mixtures to precipitate while the remains in solution
Sr+2 ;Hg+2
NH4+1; Ca+2
Ba+2 ;Mg+2
At equilibrium, the flask containing the reacting mixture Ni(s) + 4 CO(g) --> Ni(CO)4(g) contains 232 torr CO, 1240 torr Ni(CO)4, and 1.82 g Ni at 510°C. What are the Kc and KP for this reaction
What causes cycloalkanes to have two less hydrogen atoms than similar alkanes that are open chain ones? i) What is the three dimensional structure of methane? Why?
Find the empirical formulas for compounds with the following compositions: a. 8.74% magnesium, 91.26% iodine b. 36.86% nitrogen, 63.14% oxygen
Draw the isomeric alcohols (C6H14O) that can be synthesized via a sodium borohydride reduction of an aldehyde.
Lithium iodide has a lattice energy of -7.3 times 10^2 kJmol and a heat of hydration of -793 kj/mol. Find the heat of solution for lithium iodide.
Calculate the average speed of an oxygen gas molecule, O2, at 19.0 degrees Celsius.
Two charged dust particles exert a force of 4.7 10-2 N on each other. What will be the force if they are moved so they are only one fifth as far apart?
A ten L Dewar containing liquid nitrogen tips over in your car while you are transporting it. If it completely vaporizes what volume of Nitrogen gas will be produced at 1 atm and 20 degrees C
Explain the chemical process that occurred in his muscle cells to cause this discomfort. Explain the chemical reaction that has taken place in the body after exercise.
There are two key concepts to keep in mind throughout the exercises: 1) What is the unit cell for each structure? 2) What are the coordination environments of the atoms involved?
Calculate the mass of sodium chlorate that must be decomposed to form 6.5 g of oxygen. 2NaClO3(s) → 2NaCl(s) + 3O2(g)
If 5 moles of propane and 10 moles of oxygen are sealed in a container and burned, which reactant will be the limiting reactant, and how many moles of carbon dioxide will be produced?
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