When 50.0 mL of 1.27 M of HCl(aq) is combined with 50.0 mL o…

When 50.0 mL of 1.27 M of HCl(aq) is combined with 50.0 mL of 1.32 M of NaOH(aq) in a coffee-cup calorimeter, the temperature of the solution increases by 8°C. What is the change in enthalpy for this balanced reaction? Assume that the solution density is 1.00 g/mL and the specific heat capacity of the solution is 4.18 J/g⋅°C. HCl(aq) + NaOH(aq)  →  NaCl(aq) + H2O(l)

Lang Bang Company operates on a contribution margin of 20% a…

Lang Bang Company operates on a contribution margin of 20% and currently has fixed costs of $500,000. Next year, sales are projected to be $3,000,000. An advertising campaign is being evaluated that costs an additional $80,000. How much would sales have to increase to justify the additional expenditure?

Assume a 8% required rate of return. What equal annual cash…

Assume a 8% required rate of return. What equal annual cash inflows over 6 years will create a net present value of $0 with an initial investment of $1,700,000?   Selected information from the PV tables: PV of $1 n=8, i=6: 0.627 PV of $1 n=6, i=8: 0.630 PV of an Annuity n=8, i=6: 6.210 PV of an Annuity n=6, i=8: 4.623