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How much filtered 50% NaOH (in mL) must be added to 2.0liters of boiled deionized water to give an approximately 0.18 M solution of carbonate-free NaOH (40.0 g/mol)? Presume the density of the 50% solution is 1.0 g/mL.
Neglect the change in volume cause by addition of the 50% NaOH solution
n-butane vapor and liquid are in equilibrium (boiling) at 18.66 bars. Use the Peng-Robinson equation of state to determine the saturated liquid and saturated vapor molar volumes
Hydrogen bonding will not occur in molecules that contain bonds between hydrogen and a] bromide b] fluorine c] nitrogen d] oxygen
A bacterial culture isolated from sewage produced 35.5mL of methane, CH4 at 31degrees Celcius and 753 mmHg. What's the volume of this methane at standard temp. and pressure(0 degrees C and 760 mmHg)
What is the wavenumber in cm-1 for the HOMO to LUMO transition predicted by PM3, What value of ? can you infer, that would bring the HMO method into agreement with the more advanced Extended Huckel method?
A polluted water sample is suspected of being contaminated with one of the following; soap, ABS Surfactant, or LAS. In soft water, the sample has a very high BOD relative to its TOC.
Assign each species to the expression that most accurately describes the basic units of that substance.
A sample of sodium reacts completely with 0.568 (kg) of chlorine, forming 936 (g) of sodium chloride. What mass of sodium reacted
Consider formic acid, HCOOH (Ka= 1.9 x 10^-4) and its conjugate base, HCOO^- with a Kb of 5.3 x 10^-11.
The lower flammability limit (LFL) for a gas is the minimum concentration of the gas, in air, below which there is too little fuel to support combustion.
A student was asked to determine the strength of the acetic acid in a vinegar solution. For 25.00 mL of vinegar he used 32.05 mL of a 0.4235M solution of sodium hydroxide to neutralize using phenolphthalein as indicator. What was the concentration..
A solution is made by combining 15.0 mL of 18.0M acetic acid with 5.50g of sodium acetate and diluting to a total volume of 1.50 L. Calculate the pH of the solution.
The percent ionic character/percent covalent character varies from compound to compound. Choose the compound with the highest covalent character and the one with the highest ionic character from PbBr2 MgCl2 CO2 and O3.
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