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A student dissolved 10.5 g of NH4Cl in 40 mL of water.  The temperature of the water...

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Chemistry

A student dissolved 10.5 g of NH4Cl in 40 mL ofwater.  The temperature of the water changed from22.5oC to 5.1oC.  Calculate theenthalpy of hydration of ammonium chloride in J/mol.

1.  A student collected the data below whileperforming a kinetics experiment.

Trial

Volume of 2.0 M Reactant A

Volume of 0.5 M Reactant B

Volume of H2O

Time for B to react

1

10 mL

10 mL

30 mL

135 sec

2

20 mL

10 mL

20 mL

69 sec

3

10 mL

20 mL

20 mL

34 sec

           

Use the above information to complete the following table (enterall answers with 3 significant figures)

Trial

concentration of A

concentration of B

Rate for B

1

2

3

Using the data from the previous problem, determine the orderwith respect to Substance A. Using the data from Problem 1,determine the order with respect to Substance B. Using theinformation from Trial 1 and the experimentally determined ratelaw, determine the value of the rate constant, k for thisexperiment. Report your answer with 3 significant figures.

Please answer all the questions and with the three significantdigits after decimals. Please.

Answer & Explanation Solved by verified expert
3.9 Ratings (586 Votes)
Question A student dissolved 105 g of NH4Cl in 40 mL of waterThe temperature of the    See Answer
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