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have been hired by a farmer to help her understand an observation she made. While trying to prepare a copper supplement for use on her farm, she observed the formation of a large volume of precipitant while trying to dissolve copper sulfate in the irrigation water from the well on her farm (which contains high levels of hydrogen sulfide). What explanation can you provide for this observation
determine the variation of temperature within the wall and the value of temperature at x=0.1m.
a coffee cup calorimeter containing 100ml of 0.30M HCl at 20.3degrees celcius. when 1.82g of Zn solid is added, the temperature rises to 30.5 degrees celcius. what is the heat of reaction per mole of Zn.
Calculate the kg/h of wet cake feed needed to produce 1000 kg/h of "dry" ?sh cake product.
Molecular weight and mole concept : key informaiton, If Aluminum Chloride reacts with Copper II Carbonate and 0.25 moles of Aluminum Chloride are used, how much Copper II
Draw the neutral major organic product pentanoic anhydride & 2 equivalents of dimethyl amine [HN(CH3)2] given that one equivalent of amine acts as the nucleophile
A gas sample containing 1.47 mol at 25°C exerts a pressure of 401 torr. Some gas is added to the same container, and the temperature is increased to 50.°C. If the pressure increases to 800. torr,
A gas occupies 0.500L at 1.20 atm. what pressure is necessary to change the volume to 0.700L?
why do we need to excess FCR? Also give 3 reasons why gallic acid is used as standard for the total phenolic assay?
Reaction kinetics - Determination of the activation energy of the reaction between oxalic acid and potassium permanganate.
Draw the Lewis structure for the PO4-3 ion, indicating any resonance forms. On the basis of electron configurations, predict the formula of the Type I ionic compound formed from the elements Z=49 and Z=51.
The procedure calls for the addition of 7-8 drops of aqueous NaOH. What is the purpose of the base here? Be specific and show the reaction that occurs
How many Grams of NH3 are consumed when 12.5 grams of 02 react completely in the following equation? I am not sure exactly how to solve this.
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