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how many grams of ammonium sulfate can be dissolved in 0.0200 cacl2 without the formation of a solid?
Write the net redox reaction.
B2H6 + 3O2= B2O3+3H2O ; delta H=-2035 KJ how much heat is released when a mixture of 7.35 g B2H6 and 2.60 g O2 is burned?
If the average solar insolation in USA = 4.25 kWh m-2 per day , and the area of USA is 9.36 x 1012 m2. Calculate: 1. The total available power in W. 2
Use of fossil fuels - Should we be burning the raw materials for medicine and polymers? Where will we be in 50 years on this issue?
How many total stereoisomers are possible for 4-chloro-3-hexanol? Given that opening of the epoxide ring in this reaction is stereoselective, provide the names of the only two isomeric products formed using IUPAC guidelines.
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.
When 4.220 g of calcium hydroxide is reacted with a 30.0 mL of a 0.200 M sulfuric acid solution how many grams of calcium sulfate and water are formed?
what is the equation for ninhydrin test of egg white?
A 4.50-g sample of LiCl at 25 C dissolves in 25.0 mL of water also at 25 C. The final equilibrium temperature of the resulting solution is 60.8 C. What is the enthalpy, change of enthalpy, of LiCL expressed in kj per mole?
How much heat is required to warm 223 g of ice from -44.3°C to 0.0°C, melt the ice, warm the water from 0.0°C to 100.0°C, boil the water, and heat the steam to 173.0°C?
What is the half-life of a compound if 78 percent of a given sample of the compound decomposes in 45 min? Assume first-order kinetics.
Calculate rate constant for 1. level reaction where 81% of the matters have already react after 27 seconds.
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