When 0.156mol of A reacts with a stoichiometrically equivalent amount of B in a calorimeter, qcal is observed to be +219J. What is deltaHrxn below?
3A(l) + B(l) ----> 2C(s)

When 0.156mol of A reacts with a stoichiometrically equivalent amount of B in a calorimeter, qcal...
3.2 When you burn an equivalent amount of methane in the same bomb calorimeter, you notice that the change in temperature is higher. Is methane or graphite a more efficient energy source? Explain your reasoning. (6pts)
When 0.231G of phosphorus reacts with chlorine to form phosphorus trichloride, in a coffee-cup calorimeter of heat capacity 216J/C, the temperature of the calorimeter rises by 11.06C. a)Provide a thermochemical equation b) Give the Enthalpy change, Change of H, for the reaction
When a 4.348 g sample of NaOH(s) is dissolved in 100 g of water in a calorimeter, the temperature rises from 23.6ºC to 47.4ºC. Calculate HdissinkJ/mol.Assume that Ccalorimeter= 35.5J/0C.Remember, fordilute solutions, Csolnis Cwater= 4.18 J/g·0Ca. a) Calculate the amount of heat absorbed by the solution(qsoln). b)Calculate the amount of heat absorbed by the calorimeter(qcal).
a 2.49 g sample of cadmium metal completely reacts when placed in a coffee cup calorimeter that contains 75.0ml of a dilute solution of sulfuric acid ( density 1.03g/ml) to produce H2 gas and dissolved cadmium sulfate. The chemical reaction is exothermic with delta T from 21.5degrees C to 32.5C a) balanced equation- b)find enthalpy change(kJ/mol) for reaction,specific heat of reslting solution 4.18J/(gC) and assuming calorimeter is not involved in any heat exchange
(a) Draw the neutral organic product when butanone reacts with 1 equivalent of ethanol in acidic solution. HCI + CH,CH,OH (5) Below. write a curved-arrow mechanism for this reaction. Each answer field should be treated as a closed system (i.e., atom conservation). Details count! Step 1. The reactants are given; add the appropriate curved arrow(s). HCl:
Draw the kinetic and the thermodynamic addition products formed
when one equivalent of HBr reacts with the following compound. Draw
a single product for each. Ignore stereochemical or chiral
isomers.
Draw the kinetic and the thermodynamic addition products formed when one equivalent of HBr reacts with the following compound. Draw a single product for each. Ignore stereochemical or chiral isomers. kinetic product: HBr one equivalent thermodynamic product
(a) Draw the neutral organic product when butanone reacts with 1 equivalent of ethanol in acidic solution. HCI +CH,CH.OH (b) Below, write a curved-arrow mechanism for this reaction. Each answer field should be treated as a closed system (.e, atom conservation). Details count Step 1. The reactants are given; add the appropriate curved arrows) ト-Cl:
Draw the addition product formed when one equivalent of HCl reacts
with the following diene.
A 2.490-g sample of cadmium metal completely reacts when placed in a coffee cup calorimeter that contains 75.0 mL of a dilute sulfuric acid solution (aqueous) (density of 1.03 g/mL) to produce hydrogen gas and dissolved cadmium sulfate. The chemical reaction is exothermic causing the temperature of the resulting aqueous solution to change from 21.5oC to 32.5oC. Write a balanced chemical equation for the chemical reaction that occurs. Find the enthalpy change, in kJ/mol, for the chemical reaction, assuming the specific...
draw the neutral organic product when butanone reacts with 1
equivalent of ethanol in acidic solution.