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Explain what will happen If the redox reaction of permanganate and iron (2) happens in solution with the presence of HCL?
Dissolving NH4Cl(s) in water is endothermic with a heat of the solution of 15.2 kJ/mol. If a 6.134 g sample of NH4Cl is added to 65.0 mL of water in a calorimeter at 24.5°C, what is the minimum temperature reached by the solution
Determine how many grams of solute would separate if the quantity of the solvent is 129 grams if a saturated solution of ammonium nitrate at 75 °C is cooled to fifteen degree Celsius?
what fraction of the band would be filled with electrons? Assume that all valence bands (5s, 4d, and 5p) overlap. Show your work and your resulting band diagram.
hard water is hard because it contains ca2aq and mg2aq ions. it can be softened by adding borax powder which is sodium
Why can K2CO3 convert acetaminophen to phenacetin, when K2CO3 is a weak base. Williamson ether synthesis for aliphatic molecules usually requires a strong base, such as sodium ethoxide.
What volume of this gas must be burned to raise the temperature of 5.3 L of water by 5.0°C? Assume the gas is at 1.0 atm and 298 K.
The formula for caluculating a dilution of a solution is M1V1=M2V2, use this equation to calculate the volume of a 2.0 M solution of sodium carbonate required to make 100mL of a 0.25 M solution. A1) calculate the mass of calium chloride dihydrate
Determine whether the following bonds will be IR-Active show strong absorptions in the IR. The carbon to carbon triple bond in 2-heptyne. The sp hybridized carbon to hydrogen in 1-pentyne
Using the technique of the previous problem ?E was found to be -2,000.00 kJ/mol at 298 K for an unknown liquid hydrocarbon. In another experiment it was determined that for each mole of hydrocarbon
Lakes that have been acidified by acid rain can be neutralized by the addition of limestone (CaCO3). How much limestone in kilograms would be required to completely neutralize a 5.2 x 109 L lake containing 5.0 x 10-3 g of H2SO4 per liter
How many Joules are required to heat 2 L of water in a pot from 20 degree C to the boiling point of water? The specific heat of water is 4.18 J/g. Degree C and the density of water is 1 g/mL
What kinetic energy must the electrons have in order to resolve a protein molecule that is 3.80 nm in diameter? Take the mass of an electron to be 9.11× 10-31 kg.
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