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You are about to begin a titration of an unknown acid of which you have very little sample. YOu added 10.00ml volumetrically to a 125 ml erlenmeyer flask containing 50.0 ml of distilled water, but before you started the titration you realized that you do not have any indicator. Not wanting to waste the expensive sample, you decided to measure the pH of the solution and determined it to be 1.85. What was the concentration of the orginal acid sample? (Hint: it is a monoprotic acid)
the activation energy for the isomerization of methyl isonitrile is 160 kJ/mol. Calculate the fraction of methyl isonitrile molecules that has an energy of 160.0 kJ or greater at 500 K.
proportional only to the numbers of hydrogens that give each product when substituted for by chlorine. What would be the relative yield of each product?
A solution containing sulfide ions is added to selectively precipitate one of the metal ions from solution. At what concentration of sulfide ion will a precipitate begin to form? What is the identity of the precipitate?
You have a 1 L. container of a gas O2 at 20 degrees celcius and 1 atm. subtracting the weight of the container, what is the mass of the gas?
If 20.0mL of 0.00200 M Fe(NO3)3 is diluted to 50.0mL, what is the concentration of Fe+3 in the diluted solution?
The pH of the solution at the equivalence point, The pH of the solution after 40.0 mL of HCl are added.
Write equation for the reaction : Mg+H2SO4(diluted) Identify the oxidizing agent and the reducing agent.
Suppose you were asked to carry out an aldol condensation reaction between benzaldehyde and 5-methylhexanal, modeled after the experiment you performed with benzaldehyde and acetone.
If 157 of wet is collected over water at 24 and a barometric pressure of 739 , how many grams of have been consumed? (The vapor pressure of water is 22.38 .)
Show a series of reactions by which acetylene and an alkyl halide could be converted into 2-pentanol. Show all steps and all needed reagents/conditions.
What is the condensed structural formula of nonane? b. Is it a solid, liquid, or gas at room temperature?
Determine the concentration of the sulphuric acid (H2SO4) solution If It takes 58 mL of 0.124 M potassium hydroxide(KOH) to neutralize 41.5 mL of sulphuric acid( H2SO4) solution.? Express your answers in units of moles/liter
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