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What is the amount of heat in kilojoules required to convert 281.0 g of ice at -15.2°C to liquid water at 35.6°C? The specific heat of ice is 2.03 J/g ·°C. The molar heat of fusion of ice is 6010 J/mol. The specific heat of water is 4.184 J/g ·°C.
a mixture consisting of 0.250 m n2nbspand 0.500 mh2nbspin a reaction vessel at certain temperature reactsand reaches
How does the structural difference between valine and glutamic lead to the improper folding of the hemoglobin protein?
If all the species are at standard conditions except [H+], at what pH will this reaction have a potential of zero? The standard reduction potentials are 1.78 V for H2O2 and 1.36 V for Cl2.
State molecular geometries for the reactants and the product of the reaction of PF5 with the Lewis base NH3 (what adduct is formed?). Include geometry and formal charges in the structures. Also, what hybridization changes occur when PF5 reacts wit..
Ethanol can be prepared from the fermentation of crops and has been used as a fuel additive to gasoline. Explain what is the balanced equation
Assuming the volumes are additive, what is the [Cl-] in a solution obtained by mixing 225 mL of .625 M KCl and 615 mL of .385 M MgCl2
How many moles of AgCl(s) will dissolve in 1.00L of 0.100 M NaCN and what are the concentration of the various ions in solution. K = 7.08 x 1019 for the reaction Ag+(aq) + 2 CN- ? Ag(CN)2-
A 50.0 mL sample containing Ni+2 was treated with 25.0 mL of .050 M EDTA to complex all of the Ni+2 and leave some excess EDTA in solution. the excess EDTA was then titrated with .050 M Zn+2, requiring 5.00 mL to reach equivalence point
Draw the first mechanistic step( one intermolecular arrow and any subsequent intramolecular arrows needed to finish the mechanistic step) between caffeine and hydrochloric acid.
In an acid-base titration experiment, a 0.2 M solution of HCl was titrated at 25°C with a 0.05 M solution o KOH. Here the equilibrium constant for the titration reaction had this value:
1.) What mass of NaCl is dissolved in 200. g of water if the freezing point of the solution is -2.14 °C. Kf(water) = 1.86 ºC kg/mol
Calculate the pH of a buffer solution made by mixing 40.4 g of potassium formate into 1 L of a 0.09 M solution of formic acid. Give the pH to two decimal places.
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