Find out reaction enthalpy for the zn

Assignment Help Chemistry

Reference no: EM13496074

You would like to determine the reaction enthalpy for Zn(s) + 2HCl(aq) ? ZnCl2(aq) + H2(g) In part 1 of your experiment you mix 50.0 ml of 2.00 M HCl with 50.0 ml of 2.00 M NaOH. Temperature of the solution rises from 16.9 to 30.4 oC. You determine the density of the resulting solution to be 1.04 g/ml. In part 2 of your experiment you use 100.0 ml of 1.0 M HCL and 1.3078 g of Zn(s). Density of 1.0 M HCl is 1.015 g/ml and heat capacity of the ZnCl2 solution is 3.95 J g-1 K-1. In addition, you look up the heat capacity of water (4.18 J g-1 K-1) and 1.0 M NaCl (3.93 J g-1 K-1); the enthalpy of neutralization for NaOH and HCl is -57.32 kJ mol-1. a) determine calorimeter constant b) determine reaction enthalpy for the Zn / HCl reaction c) if ?fHo (ZnCl2 aq) is -482.2 kJ mol-1 and ?fHo (HCl aq) is -165.2 kJ mol-1, what is you percent error?

Reference no: EM13496074

Questions Cloud

Calculate the gravitational force exerted on the baby : Some believe that the positions of the planets at the time of birth influence the newborn. Calculate the gravitational force exerted on the baby by the planet Jupiter (m=1.9*10^27 kg) at its closest approach to the earth

Explain a small amount of naoh to a solution : What change will be caused by adding a small amount of NaOH to a solution containing flouride ion and hydrogen flouride

Explain what is the redox reaction for mno4- + 8h+ +5fe2+ : what is the redox reaction for MnO4- + 8H+ +5Fe2+ ______ Mn2+ + 5Fe3+ + 4H2O and which ion is oxidized and which one is reduced

What is probability of success on a single trial : What is a "success" in this situation and what is probability of success on a single trial?

Find out reaction enthalpy for the zn : determine calorimeter constant b) determine reaction enthalpy for the Zn / HCl reaction c) if ?fHo (ZnCl2 aq) is -482.2 kJ mol-1 and ?fHo (HCl aq) is -165.2 kJ mol-1, what is you percent error

Calculate the approximate angle the needle deflects : You place a long straight wire on top of your compass, and the wire is a height of 3 millimeters above the compass needle. calculate the approximate angle the needle deflects

What distribution and paramete : a) Let X be the number of teams from IU on Pete's season schedule. What's the probability that none of the Pete's opponents are from IU? What distribution and parameter(s) are you using?

What is the difference in the masses of these planets : The mass of a robot is 6210 kg. This robot weighs 3970 N more on planet A than it does on planet B. What is the difference MA - MB in the masses of these planets

Explain combination is the best choice for the preparation : What combination is the best choice for the preparation of 3-chloro-1-iodobutane? Answer a.) 1-Iodobutane + chlorine (400 °C) b.) 2-Chlorobutane + iodine

User Account

All Pages