Compute the heat of the reaction hrxn

Assignment Help Chemistry
Reference no: EM13212382

During an experiment, a student adds 0.339 g of calcium metal to 100.0 mL of 2.05 M HCl. The student observes a temperature increase of 11.0 °C for the solution. Assuming the solution\'s final volume is 100.0 mL, the density is 1.00 g/mL, and the specific heat is 4.184 J/(g·°C), calculate the heat of the reaction, ?Hrxn.

Ca(s) + 2H+ (aq) ---> Ca2+ (aq) + H2(g)

Delta H rxn

Reference no: EM13212382

Questions Cloud

Compute the molar heat of solution of kcl : dissolved in water in a calorimeter that has a total heat capacity of 2.508 kJ·K-1, the temperature decreases by 0.460 K. Calculate the molar heat of solution of KCl.
Discuss the factors beyond crystal structure : Discuss the factors beyond crystal structure, quenching and temperature that affect he results of a specimen in a Charpy V notch impact testing.
What is the effect of quenching on transition temperature : what is the effect of quenching on the transition temperature and toughness for the mild steel ?
What would be failure to recognize the cellophane fallacy : Consider a good being sold in both city A and city B. The correlation coefficient between the price of the good in city A and city B (using weekly data over the period 2007 to the present) is 0.92. We may conclude that city A and city B are in the..
Compute the heat of the reaction hrxn : During an experiment, a student adds 0.339 g of calcium metal to 100.0 mL of 2.05 M HCl. The student observes a temperature increase of 11.0 °C for the solution.
What is the wall stress of the pipe : Water flows though a 20mm diameter pipe at 3L/min and static pressure of 100mmHG. What is the wall stress of the pipe. The pipe is 1.5mm thick.
What is the force needed to seperate the top surface : A layer of water seperates two smooth surfaces a distance of 2r. Derive an experssion for the force needed to pul the two surfaces apart. Consider the bottom surface fixed. What is the force needed to seperate the top surface?
Determine the heat transport rate of energy through : Determine the heat transport rate of energy through an animal skull where average inside surface temperature is 95 degrees farinhiet and whose out outside surface temperature is 90 F. Assume the skull is a spherical shell 7.5 inches in outside dia..
Estimate the uncertainty in indicated speed : An auto speedometer is graduated in 5 mph increments and has an accuracy rated to be within ±4%. Estimate the uncertainty in indicated speed at 60 mph.

Reviews

Write a Review

Chemistry Questions & Answers

  Calculate the ph of a buffer

Calculate the pH of a buffer formed by mixing 85 ml of 0.12 M lactic acid with 95 ml of 0.15 M sodium lactate.

  Explain the valences the electronic structure

Explain the valences for each, showing what may happen to the electronic structure in each case

  How many moles of gas were added to the container

If the pressure increases to 800. torr, how many moles of gas were added to the container? Assume a constant-volume container.

  Define change the vaule of the equilibrium constant

Which of the listed perturbations would change the vaule of the equilibrium constant for the following reaction?

  Explain heat capacities are independent of temperature

universe on assumption that heat capacities are independent of temperature

  Calculate the electrode potential

Calculate the electrode potential of the following half cell if it was at standard conditions. Then recalculate how this changes using.

  Calculate the solubility of silver chloride

Calculate the solubility of silver chloride in a solution that is .100 M in NH3. Ksp for AgCl = 1.77x10^-10. Kf for Ag(NH3)2+ = 1.7x10^7

  How many times heavier is a molecule

Each of 2 front tire in the car is filled with a different gas. One tire contains 116g of helium, another tire has 160g of unknown gas. How many times heavier is a molecule of the unkown gas than an atom of helium.

  Explain what is moisture content of exhaust

what is moisture content of exhaust? iii) power generated by turbine? iv) at what rate would entropy be generated within turbine? v) assuming the temp of the surroundings T(sigma)=300K what is lost work in kJ/kg of steam?

  What is the molarity of a solution

what is the molarity of a solution prepared by dissolving 2.06g of NaOH in a volume of 500.0ml?

  State the starting concentration of reactants and products

the starting concentration of reactants (Q) and products (R) are both 15 uM, then the equilibrium concentration of Q and R is what in uM?

  Explain generally list melting ranges rather

Although the term "melting point" is used to describe a solid/ liquid change, we generally list melting ranges rather than single melting point. For most pure substances,

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd