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We are given the mass of the unknown Trial 1: 0.1100g Trial 2: 0.1200g volume of NaOH used Trial 1: 10.34 mL Trial 2: 11.28 mL moles of NaOH used: we have to calculate this for both trials as well as molar mass of acid if monoprotic also for both trials and then the last question we need to find the average of the molar mass.
phosphoric acids, rather than hydrochloric acid, used to catalyze the dehydration of alcohols?
An ideal solution is made from 5.0 mol of benzene and 3.25 mol of toluene. At 298 K the vapor pressure of pure benzene and toluene is 96.4 Torr and 28.9 Torr respectively. Explain what is the vapor pressure of the mixture. Express your answer in u..
the half-cell tl tl1 mol l-1 is connected to a pt h h21 atm half-cell in which the concentration of h is unknown.
One mechanism of fragmentation is loss of a neutral radical by cleavage of a bond from which one electron lost. What is the m/z ratio of the most stable cationic fragment that can be generated from dexchlorpheniramine by this mechanism?
Describe the hazards of each of the solutions. Explain why the mixture is not as hazadous as the original solution from a waste disposal point of view.
consider the system introduced in example 3.b.2 p. 97 in which a 2 l sealed jar half filled with water and half filled
I did three trials and my volumes for the sodium thiosulfate were 12.5 ml, 11.1 ml, and 10.2 ml. I am not sure how to get the molarity of the sodium thiosulfate secondary solution for each trial from this information.
A solution of NAOCH3 in methanol can be prepared by adding NaH to methanol (CH3OH). A flammable gas is produced as a byproduct. a) write the acid-base reaction that takes place
a gas mixture contains helium and oxygen at partial pressures of 255 torr and 0.450 atm. what is the total pressure in
When a solution of hydrogen peroxide is put on a cut, it bubbles, producing water and oxygen gas. If someone puts 0.56 mL of 3.00% hydrogen peroxide solution on a cut, what is the volume in mL of oxygen produced
Depict a simple schematic diagram of linear polyethylene and cross linked polyethylene. chemical structure of ethylene is CH2 = CH2.
3 tons of ethanol are accidentally discharged into a lake. By how much is the biological oxygen demand of this water increased? Assume that all ethanol is transformed into CO2 and assume the lake contains 108 liters of water.
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