Explain what mass of calcium nitride produces
When 30.5g nitrogen and 56.6g calcium gas undergo a reaction that has a 90.0% yield, explain what mass of calcium nitride produces? Ca +N2--> Ca3N2 (unbalanced)
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Estimate the frequency and wave number of the J = 2← 1 transition in the pure rotational spectrum of 12C 16O. The equilibrium bond length is 112.81pm.
What will be the concentration of HF after the system finally reaches the equilibrium if the initial concentrations H2 and F2in a closed container are 1.00 M.
If the initial concentrations Br2 and H2 in a closed container are 1.00 M, explain what will be the concentration of HBr after the system finally reaches equilibrium?
If the activation energy for this reaction is 52. KJ/mole, determine the rate constant at a temperature of 30.0°C? The rate constant for a certain chemical reaction is 74.0s-1 at a temperature of 20.0°C.
The final temperature of the mixture is 31.1 degrees C. What is the specific heat capacity of the metal alloy when a 53.0g metal alloy ingot at 93.0 degrees C is added to 290g of water at the 22.0 degrees C in an insulated calorimeter?
The element Mercury, Hg, is a silvery liquid at the room temperature. The normal freezing point for Mercury is -39.9oC, and its molar enthalpy of fusion is? Hfusion =2.29 KJ/mol.
Determine the numbers of grams of SiCl4are obtained in the reaction of 2.8 g of silicon with excess the chlorine in the direct reaction of silicon with Cl2 the yield of SiCl4 is 50 percent?
Explain the minimum amount of ethanol required to re-crystallize 2.0 gram sample of compound X when the solubility of an unknown compound X in ethanol is found to be 0.21 grams per 10 mL at 0o Celsius and 1.4 grams per 10mL at 78oC.
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