Anonymous
Anonymous asked in Science & MathematicsChemistry · 8 years ago

chem homework help please?

If 15.0 mL of a 1.5M HCl solution at 22.5 degrees C is mixed with 25.0mL of a 1.5M NaOH solution at 21.5 degrees C that is in a calorimeter, and the final mixed solution temperature ends up at 28.5 degrees C, what is the delta Hrxn for this process? assume that Ccalorimeter = 35.5 j/Degree C

1) what is the balanced equation for the reaction

2) what is the source of heat that is causing the increase in temperature

3) calculate the amount of heat absorbed or lost for the HCL solution. Treat this solution as if it was just water.

4) calculate the amount of heat absorbed or lost for the NaOH solution. Treat this solution as if it was just water.

5) calculate the amount of heat absorbed or lost by the calorimeter. The calorimeter's initial temperature is the same as the solution that is initially inside it.

6) determine the amount of heat absorbed or lost during this reaction.

7) which of the reactans is the limiting reagent? determine the moles of the limiting reagent

8) determine the amount of heat given off per mole of limiting reagent (delta Hrxn) make sure to include an appropriate sign indicating whether it is an endothermic or exothermic process. provide your answer in units of kj/mol.

2 Answers

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  • 8 years ago
    Favorite Answer

    homework is homework you should do yourself

  • selzer
    Lv 4
    4 years ago

    P has a ionic value of -3 Na +a million Rb +a million There for phosphorus could have the utmost potential point. i've got faith a sodium ion could have greater advantageous potential simply by fact of the place that's on the periodic table. The order of metallic characters could be oxygen may be the least and arsenic may be the main metallic like.

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