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When 25.0 ml of 0.5 M HCl is added to 30.0 ml of 0.4 M NaOH in a coffee calorimeter at 27°C, the temperature rises to 35°C. Calculate delta H of the reaction (in kJ/mol). (Assume the total volume is the sum of the volumes and the density and specific heat capacity of the solution are the same as for water.) Enter to 1 decimal place.
When alkyl halides react, rearrangements are likely to occur in which of the following types of reactions? A) SN1 B) SN2 C) E1 D) Both SN1 and E2 E) Both SN1 and E1
Which of the following equations represents the proper net ionic equation for the precipitation of an insoluble hydroxide compound from Al(NO3)3(aq) and KOH (aq)
what mass of limestone must have dissolved if 3.05x1010 kg of calcium hydrogen carbonate was produced?caco3sh2co3aq-gt
The properly balanced mixture reacts to form K2CO3, N2, H2O and CO2. Write the balanced reaction and determine the mass of KNO3 that should be mixed with 8.5 g of sugar to produce optimally balanced rocket candy.
The crew members used a factor of 1.77 for the fuel density-the problem is that 1.77 has units of pounds per liter and not kilograms per liter! What is the fuel density in units of kg/L? What mass and what volume of fuel should have been loaded?
the complete combustion of 1.043g of C9H8O in a bomb calorimeter( Ccal= 3.986 kj/c) produced an increase in temperature of 12.85C. Calculate the molar enthalpy of combustion of C9H8O, in kJ/mol.
15g of steam at 373 K is added to 250g of H2O at 298 K at constant pressure of 1 bar. Is the final state of the system steam or liquid water? Calculate changes in entropy for the process.
Because HCl and NaOH are a strong acid and base respectively, they dissociate completely and the pH of the solution is dependent only on the excess acid or base in the beaker at that point in the titration.
The boiling point of another member of this homologous series was found to be 309 . What is the likely molecular formula for this compound
If the titrant has a molarity of 0.2750 M and there are 50.00 mL of analyte present, what is the molarity of the analyte?
a cetrain pitchers fastballs have been clocked at 104 mph. calculate the wavelength of a .141-kg baseballin nm
Given a solution in which [Ba2+]= 0.010 M./ a) What concentration of sulfate ion (SO4--) is required to just begin precipitating BaSO4?
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