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Assuming 100% yield, what are the masses of the products that are formed by reacting 2.3g of C2H6(g) with excess O2(g) in the reaction C2H6(g) + O2(g)--->CO(g) +H2O(g).
Why or Why not and provide cathode-anode half reactions? How fast is the corrosion occurring?Do we have enough information to answer this question? If not, what additional information is needed?
How does the addition of salt affect the equilibrium temperature of the icewater mixture? Did either cup completely freeze after 30 minutes? How does the addition of salt appear to affect the freezing point of water?
when using a rotary evaporator, the water bath is typically kept at a temperature below the normal boiling point of the solvent to be evaporated
Many homeowners treat their lawns with CaCO3(s) to reduce the acidity of the soil. Write a net ionic equation for the reaction of CaCO3(s) With a strong acid.
A sample is composed of a mixture of CaCO3 and CuSO4*5H2O. A chemist decided to analyze the mixture by dehydrating it by heating it to 120 degrees Celsius for 12 hours. If a 5.327 g sample weighed 4.281 g after dehydration
A compound found in ancient Egyptian cosmetics has the formula Pb2Cl2CO3. If a sample of this substance contains 5.83 x 1021 molecules of this substance, how many moles are present, and what is the mass, in milligrams, of this sample?
(The specific heats of ice, steam, and liquid are 2.03 J/g · °C, 1.99 J/g · °C, and 4.18 J/g·°C, respectively. The heat of fusion is 6.02 kJ/mol and heat of vaporization is 40.79 kJ/mol.)
A 2.00g sample of a particular compound was dissolved in 15.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85 Celcuis.
A 75.0 mL volume of 0.200 M NH3(Kb=1.8e-5) is titrated with 0.500 M HNO3. Calculate the pH after the addition of 21.0 mL of HNO3
What is the rate of formation of carbon dioxide over the specified time period in this reaction
What is the dissociation constant, Kd, of a ligand with a percent occupancy (or fractional saturation) of 50% when [ligand] = 10-7 M? HINT; Theta = (ligand) / ((ligand) + Kd) where
with this balanced equation of copper carbonate calculate the concentration of copper in solution
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