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Defend or refute:(a) The absence of an alkene C=C IR stretch is definitive evidence that a compound lacks an alkene functional group.(b) Bromine is a reliable chemical test for the presence of alkenes and alkynes.
What is molarity of NaOH solution if 26.0ml of 0.380 M H2So4 solution is required to neutralize a 25.0ml sample of the NaOH solution
Determine the mass, of: a.30.0 mL of the liquid propylene glycol, a moisturizing agent for foods,
The introduction state that often the rate doubles for each temperature increase of 10degree celcius. What value of the activation energy would cause the rate to double between 25~35degree celcius? ((k value)
Calculate the change in pH when 9.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq).
We are asked to construct an energy level diagram (molecular orbital) for the molecule SO. We are then asked to comment on the ionic species of SO - bond order, bond distance etc. So far so good.
if 5.50 mol calcium carbide reacts with an excess water, how many moles of acetylene will be produced?
assuming that the atomspher is locally isothermal, the air density variation with pressure is giving by B=B0*(P/P0) where B is density ,p is pressure , and the subscript 0 denotes conditions at the earth's surface.
1)WhenH2(g)reacts withC2H4(g)to formC2H6(g),137kJ of energy areevolvedfor each mole ofH2(g)that reacts. Write a balanced thermochemical equation for the reaction with an energy term in kJ as part of the equation.
A reaction is followed and found to have a rate constant of 3.36 x 10^4 M-1S-1 at 344 K and a rate constant of 7.69 M-1s-1 at 219K. Determine the activation energy for this reaction"
How much energy is released during the complete combustion of 329 grams of cyclobutane ?
A procedural change would be essential if a boy want to determine the tomato juice's acidity by titrating a sample of juice with NaOH(sodium hydroxide) solution Briefly explain What change would you make to the procedure ?
The energy emitted from an atomic nucleus is found by ?' natural law scientific theory There is the same number of molecules in equal volumes of gases.?
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