Finding the final temperature of the mixture
25.0 mL of ethanol (density = 0.789 g/mL) initially at 5.4°C is mixed with 34.6 mL of water (density = 1.0 g/mL) initially at 25.3°C in an insulated beaker. Assuming that no heat is lost, what is the final temperature of the mixture?
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Fe203 is converted into metallic Fe plus H2O(g). If the residue weighs 1.774 g, what is the weight percent of Fe2O3 in the original mixture?
Vehicles arrive at a tollbooth according to the function λ(t) = 5.2 - 0.20t, where λ(t) is in vehicles per minute and t is in minutes. The toll booth operator processes one vehicle every 20 seconds.
The equation shows the combustion of butane (C4H10). How many moles of water can be produced by 12.5 moles of C4H10 with excess oxygen?
Hydrogen sulfide ion, HS-, is a weaker base than ammonia, NH3. When ammonia reacts with hydrosulfuric acid, H2S, what species are present in the solution in the largest amount?
In certain cases calcium hydroxide and sulfuric acid react to produce calcium bisulfate and water. When 0.0720 mol H2SO4 are reacted with 0.0240 mol Ca(OH)2, how much calcium bisulfate is produced?
Suppose that 0.92 of water condenses on a 85.0 block of iron that is initially at 22. If the heat released during condensation goes only to warming the iron block, what is the final temperature (in ) of the iron block? (Assume a constant enthalpy
A canal is constructed parallel to a river 460m away both fully penetrating an unconfined aquifer of clean sand and gravel as shown. The aquifer has a hydraulic conductivity of k=18.5m/day and is subjected to an average infiltration of 1.6m/yr.
Write an assay / paper review on the application of suspended particles or particles (solid form, liquid or gas) such as in medicine, drug delivery system.
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