a. For a weak acid with a pKa of 6.0, show how you would calculate the ratio of acid to salt at pH 5.

b. Suppose you have just added 100 mL of a solution containing 0.5 mol of acetic acid per liter to 400 mL of 0.5 M NaOH. What is the final pH?

Compute the standard enthalpy of formation of ethane : The molar heat capacity of ethane is represented in the temperature range 298 k to 400 k by the empirical expression C(p,m)/(J K-1 Mol-1) = 14.73 + 0.1272 (T/K). Calculate the standard enthalpy of formation of ethane at 350 K from its value at 298.. |

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Compute the ratio of acid to salt at ph 5 : a. For a weak acid with a pKa of 6.0, show how you would calculate the ratio of acid to salt at pH 5. b. Suppose you have just added 100 mL of a solution containing 0.5 mol of acetic acid per liter to 400 mL of 0.5 M NaOH. What is the final pH? |

Determine what is the cost of the option hedge : Raider Inc., an American importing firm anticipates an outflow of ¥893 million in 6 months. Raider's management team is worried about the course of the ¥/$ exchange rate over the next 6 months and decides to hedge. |

What amount of damages will the court award to cameron : Cameron declined to appear in the action movie. Cameron filed suit against Colossus for breach of contract. Will this suit be successful? If so, what amount of damages will the court award to Cameron? Explain. |

Show how an assembly might replace : show how an assembly might replace this pseudo-instruction with the true instructions to achieve the same effect. You solution must observe MIPS register use conventions. |

Explain the general henderson-hasselbalch equation : Give the general Henderson-Hasselbalch equation and sketch the plot it describes (pH against amount of NaOH added to a weak acid). On your curve label the pKa for the weak acid, and indicate the region in which the buffering capacity of the system.. |

## Compute the activity coefficient of glucoseCalculate the activity coefficient of glucose in this solution if the solution freezes at -0.66 C. |

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## Define the triple point pressure and temperature of waterEstimate the triple point pressure and temperature of water, given that the standard enthalpies of fusion and vaporization are 6008 j/mol and 43990 J/h at 273.15k and 298.15 k, respectively the vapor pressure of water at 25 c is 23.8 torr |

## Draw a diagram of the process in the p-v planeAn Ideal gas originally at a temperature T1 and pressure P1 is compressed reversibly against a piston to a volume equal to one-half its original volume, Draw a diagram of the process in the P-V plane. |

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## Determine the water of crystallization of a hydrated saltPlan and Design Lab: To Determine the water of crystallization of a hydrated salt XY•nH2O and to determine the value of n in the formula XY•nH2O with a relative formula mass of 392.14. |

## What mass of the solute can be dissolvedif the solubility of AgNO3 at 40oC is 211 g per 100 g of water, what mass of this solute can be dissolved in 350 g of water at the same temperature? |

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