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Question- When urea is dissolved into water, the temperature of the solution decreases. What is the correct delta H solution?
Not confident which formulas/units I require to solve something like this
Oleum or fuming sulfuric acid available commercially in concentrations ranging from 20 to 99.9% sulfur trioxide. Discuss at least three potentially hazardous features associated with concentrated sulfuric acid.
Calculate the reaction rate for the reaction CLO2 and OH^- at 0°C. when the initial CLO2 and OH^- concentrations are 8.25 x 10^-3mol/L and 5.35 x 10^-2mol/L, respectively.
Explain which of salts hydrolize in aqueous solution- CH3COONa, NiCL2, Ca3(PO4)2 state ionic equations for the hydrolysis reactions. Forecast the pH of the solution
Question- The concentration of CO2 in a soft drink bottled with a partial pressure of CO2 of 6.5 atm over the liquid at 29°C is 2.2 × 10-1 M. Determine the Henry's law constant for CO2 at this temperature.
Addition of HBr to 1-phenylpropene yield only (1-bromopropyl)benzene. Propose a mechanism for the reaction and explain using resonance structures why none of the other regioisomer is produced?
How many moles of PbI2 are formed? What is the concentration of KNO3? What is the remaining concentration of the reactant that was in excess?
What is the final temperature of the water when equilibrium is reached? (Assume a density of 0.998 (g/mL) for water.)
Phosphorus trichloride, PCl3, has a molar mass of 137.32 g/mol. What is the mass of 0.285 moles of PCl3?
a gas occupies a volume of 350 ml at 3000. mm of hg and 25.0oc. the number of moles of gas present
A solution of a weak acid was tested with the indicators used in this experiment the colors observed were violet orange red blue and yello what is the approximate pH of the solution
thermogravimetry tg and differential scanning calorimetry dsc are commonly used techniques to study the properties of
125 mole of oxygen gas is added to carbon in a .25L container. The mixture equilibriates at 500K. Calculate the equilibrium concentration of carbon monoxide, knowing that K=.086 at 500K.
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