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How much energy, in joules, must be absorbed to convert to Na^+ all the atoms present in 1.00mg of gaseous Na? The first ionization energy of Na is 495.8kJ/mol.
A. 0.0464JB. 46.4JC. 0.0216JD. 1.14*10^4J21.6J
Reaction of 3-pentanol with potassium iodide in aqueous ethanol gave no reaction under several different reaction conditions. If one adds a catalytic amount of para-toluenesulfonic acid
A solution of water (Kb=0.512 C) and glucose freezes at 4.15. What is the molal concentration of glucose in this solution? Assume that the freezing point of pure water is 0.00 .
The minimum frequency of light needed to eject electrons from a metal is called the threshold and find the minimum energy needed to eject electrons from a metal with a threshold frequency of 3.27*10^14s^-1.
A container (8.65-L ) holds two gases mixture at 31 °C. The partial pressures of gas X and gas Y, respectively, are 0.206 atm and 0.867 atm. If 0.200 mol a third gas is added with no change in temperature or volume determine the total pressure be..
A total of 2.00 mol of a compound is allowed to react with water in a foam coffee cup and the reaction produces 180g of solution. The reaction caused the temperature of the solution to rise from 21.0 to 24.7degrees Celsius
Discuss the importance of economics as it relates to pollution prevention. Supple at least two seperate examples to augment your discussion.
a student had 1.0 k if a 1.00 m acid solution. much of the surprise of the student it took 2.00 l of 1.00 m naoh
What is the minimum pressure in kPa that must be applied at 25 °C to obtain pure water by reverse osmosis from water that is 0.156 M in sodium chloride and 0.094 M in magnesium sulfate?
What wavelength corresponds to the transition n=5 to n=3 in the hydrogen atom. What type of radiation is this
As pH increases, hydronium ion concentration increases. As pH increases, hydroxide ion concentration increases
Inside the container is an ideal gas at 1.00 , 20.0 , and 1.00 .What will the pressure inside the container become if the piston is moved to the 1.80 mark while the temperature of the gas is kept constant
when cyclopentane is exposed to Br2 in presence of light. Write the formulas of all possible dibromination products. Draw molecule by placing atoms on grid.
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