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Puts sucrose in a glass beaker adds water and stirs. While the table sugar disappears, stated that has chemically broken down the sucrose into fructose and glucose. Is this chemical analysis is correct?
Why does BeCO3(s) rapidly decompose to BeO(s) and CO2(g) at low temperature, but CaCO3(s) must be heated to undergo decompostion to CaO(s) and CO2(g)
An ore containing 24% solid inert and 76 mol% iron pyrites (FeS2) is roasted in the presence of dry air at 500 °C and 1 atm. Considering the given reactions.
The excess EDTA from this reaction required 19.77 mL of 0.01883 M Pb2+ standard solution to reach an end point. Calculate [Cu2+] in the unknown
the use of phenols such as tert-butylcatechol as free-radical scavengers is based on the fact that phenolic hydrogens
required to reach the first equivalence point of a solution of citric acid (H3C6 H5O7), how many ml of NaOH are required to completely neutralize this solution
calculate the ksp of lead iodide from the following standard electrode potentials at 25 c oxidative -.126 redox
Solutions of sodium thiosulfate are used to dissolve unexposed AgBr ( Ksp= 5.0E-13) in the developing process for black-and-white film. What mass of AgBr can dissolve in 1.00L of 0.500M Na2S2O3?
A 0.5220g sample of an unknown monoprotic acid was titrated with 9.96*10^-2 M NaOH. The equivalence point of the titration occurs at 23.84mL.
The calcium compound that precipitated was measured to be 18.9 milligrams. Determine the grams of the element calcium in one Liter of water.
a mixture of gaseous oxygen and nitrogen is stored at atmospheric pressure in a 3.7 l iron conatianer maintained at
Given the following Delta H°298 values in kcal/mol , where "gr" stands for graphite, find Delta f H°298 of Fe(s) and Fe2O3(s) Fe2O3(s) + 3C (gr) --> 2Fe(s) + 3CO(g) 117 FeO(s) + C(gr) --> Fe(s) +CO(g) 37 2CO(g) + O2(g) --> 2CO2(g) -135 C(gr) + O2(..
Explain Ammonia gas is produced by reacting hydrogen gas with nitrogen gas. To produce 450 g of ammonia gas utilizing air as your source of nitrogen gas, explain what volume of air is required if the air is introduced at 25°C and 740 mmHg
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