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Question- The compound CH3CH=CHCHO has a strong absorption in the ultraviolet at 46 950 cm?1 and a weak absorption at 30 000 cm?1.
Justify these features in terms of the structure of the molecule.
Solve the above problem in detail no word count
1 calorie = heat required to raise temp. Of 1.00 g of H2O by 1.0 oC. Which has the larger heat capacity? How much energy is transferred due to T difference?
Ea for a certain biological reaction is 50 kJ/mol, by what factor ( how many times) will the rate of this reaction increase when body temperature increases from 37 C (normal ) to 40 C (fewer)
dissolved in 100.0 mL water and titrated with 0.500 M NaOH; it takes 45.1 mL to reach the equivalence point. What is the molecular mass (g/mol) of pyruvic acid?
calculate the standard reduction potential for the following couple. use electrons water and protons to balance the
Ozone molecules in the stratosphere absorb much of the harmful radiation from the sun. How many ozone molecules are present in 1.00 L of air under the stratospheric ozone conditions of 227 K temperature and 1.89 * 10^-3 atm pressure
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At equilibrium,beaker a lost 7.0g. Define what will happen for the system to be equilibrium as well as compute the molar mass of the unknown and state any assumption
A sample of chlorine has two naturally occuring isotopes, the isotope Cl-35 makes up 75.8% of the sample, and the isotope cl-37 makes up 24.3 of the sample. Which of the following statements is true
A plot of ln k vs. 1/T for the decomposition of dinitrogen pentoxide yielded a slope = -7.85 x 105 and a y-intercept = 35.2. whats its activation energy
If 30.0mL of 0.500M KOH are needed to neutralize 10.0mL of HCl of unknown concentration, what's the molarity of HCl?
A buffer solution of pH 5.3 is to be prepared from propionic acid and sodium propionate. The concentration of sodium propionate must be 0.50 M. What should the concentration of propionic acid be? Ka = 1.3 X 10-5
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