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Calculate the weight of benzene codistilled with each gram of water and the percentage composition of the vapor produced during a steam distillation. The boiling point of the mixture is 69.4°C is 227.7 mmHg.
from the IR, 1H NMR spectrum and uv values decide what functional groups are present in the compound and deduce any other structural information you can, such as existance of conjugation in the carbonyl compound.
calculate the energy required to bring your substance from absoluter 0 to 4000 degrees c , if you have 5g,75g,300g,1000g,1.5 of your substance.
A 100. mL sample of 0.10 M HCl is mixed with 50. mL of 0.12 M NH3. What is the resulting pH?(kB FOR NH3= 1.8 x 10^-5)
What is the mole fraction of each component in a mixture of 12.45g of H2, 60.67g of N2 and 2.38g of NH3
What is the concentration of the HNO3 solution? (b) How many moles of NaOH were in excess after the first addition?
This increases to 0.010 Msec^-1 at 90 degrees C. Calculate the activation energy for this reaction.
Write an overall balanced equation and a net ionic equation for the complete neutralization of aqueous H2SO4 with aqueous NaOH. Be sure to include phase designations such as (s) and (aq).
A student mixed 50.0 mL of 0.50 M H2SO4 (aq) at 18.5 degrees C with 100 mL of 0.50 M NaOH (aq) at the same temperature. After the reaction was completed, the temperature rose to 22.0 degrees C. What was the heat of reaction? (Assuming the densitie..
Fe(s) + 2HCL(aq)goes to FeCl2(aq) + H2(g) Change in enthalpy is -87.9kJ. How much heat is liberated at constant pressure if .368 g of iron reacts with 18.8mL of 0.568 M HCl?
a sample of Ringer's solution contains the following concentractions (mEq/L) of cations: Na 147, K 4 and Ca2 4. If CI- is the only anion in the solution
A reaction with a low enthalpy of reaction value is not spontaneous at low temperature but becomes spontaneous at high temperature.
Rank the following compounds in order of reactivity toward nitration with HNO3
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