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Find the amount of known substance present in the mixture.
A mixture of calcium carbonate and calcium oxide that weighed 1.727g was heated until all the calcium carbonate was decomposed to calcium oxide .after heating the sample weighed 1.551g. Calculate the mass of calcium carbonate present in original mixture.
Finding the Thermodynamic parameters (Enthalpy of the reaction).
How many liters of cyclohexane need to be burned to release as much energy as burning 10.0 Ib of pine logs? The density of cyclohexane is 0.7785g/mL, and its DeltaH comb = -46.6kj/g.
To determine the molecular formula of a compound - gas was mixed with calcium chloride solution,
What masses of iron(III)oxide and aluminium must be used to produce 15.0g iron? What is the maximum mass of aluminium oxide that could be produced?
how many mols of H 2 can produce
By Solving this problem student is able to understand how to calculate theoretical and percent yields in an experiment - determine theoretical and percent yields for this experiment.
Dalton law of partial pressure - The partial pressure of oxygen is maintained at 0.20 atm at this depth
The reaction between white phosphorous and oxygen produces solid tetra phosphorus decoxide (P 4 O 10 ).
Describe the major absorption bands in the IR spectrum - indicate the bonds responsible for those peaks which prove you have synthesized isopentyl acetate and that it is an ester.
Analysis of corrosion mechanisms and preventative measures
Calculating the equilibrium constant (Keq) for the given reactions - Determine the Keq for the following reactions
Write the electronic configuration in sublevels for the following atoms
Calculate the approximate SO 2 mass emission in lb/day.
Find the contact time for inactivating Gardia cysts - How much contact time would be required for inactivating Gardia cysts
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