Ask Question, Ask an Expert

+61-413 786 465

info@mywordsolution.com

Ask Chemistry Expert

Please any help would be much appreciated!!!

A pair of students performed an experiemnt to determine the heat of formation of zinc oxide. The reactions are entirely analogous to the reactions of magnesium oxide. They reacted 1.504 g of zinc with 100.20 g of 0.50 M hydrocholoric acid. (Zinc is the limiting reagent.) The initial temperature was 23.11 C and the final temperature was 31.36 C. If the heat capacity of zince chloride solution formed in this reaction is 4.06 J ^-1 C^-1 and the caloimeter constant is 7J C^-1, calculate enthalpy change for the quantity of zinc reacted. Be sure to follow the significant figures convention in the answer you report.

Chemistry, Academics

  • Category:- Chemistry
  • Reference No.:- M9436978

Have any Question?


Related Questions in Chemistry

In the spring time a background ozone level of 290 ppbv was

In the spring time, a background ozone level of 29.0 ppbv was measured in Edmonton. Convert the mixing ratio of 29.0 ppbv ozone to units of molecules cm-3. Assume a pressure of 1.108 atm and a temperature of 12.5 ºC.

Use the simulator for the hydrogen atom Use the simulator for the hydrogen atom

Use the simulator for the hydrogen atom (https://phet.colorado.edu/en/simulation/hydrogen-atom) to estimate the energy needed to transfer one mole of electrons from the energy level n = 1 to the level n = 3.

Determine the molecular formula of a compound that contains

Determine the molecular formula of a compound that contains 26.7% P, 12.1% N, and 61.2% Cl, and has a molar mass of 580.0 g/mol. Enter chemical formula as is HC2H3O2 as HC2H3O2.

How many molecules of butane c4h10 are contained in a 9213

How many molecules of butane (C4H10) are contained in a 9.213 g sample? How many hydrogen atoms are contained in this sample?

Suppose that a student is determining the total base

Suppose that a student is determining the total base content of an antacid tablet by performing a back titration. He/she weighs out a .3012g portion of a tablet whose total weight is 1.5312g, dissolves this in exactly 40 ...

Consider the following reactionco h2 ltgt ch3oha reaction

Consider the following reaction: CO + H2 CH3OH A reaction mixture in a 5.18 L flask at a certain temperature contains 26.8 g CO and 2.36 g H2 . At equilibrium, the flask contains 8.67 g CH3OH. Calculate the equilibrium c ...

Explain why the faster red particles in the video slow down

Explain why the faster red particles in the video slow down and the slower blue particles speed up when they come into contact with each other.

Ironiii oxide reacts with carbon monoxide according to the

Iron(III) oxide reacts with carbon monoxide according to the equation: Fe2O3(s)+3CO(g)→2Fe(s)+3CO2(g) A reaction mixture initially contains 22.15 g Fe2O3 and 15.98 g CO. Once the reaction has occurred as completely as po ...

Why would the fact that red blood cells are malformed cause

Why would the fact that red blood cells are malformed cause a problem with their ability to carry oxygen? How would this affect a person stricken with this disease?

Assessmenttaskyou have been tasked to prepare a report for

Assessment Task You have been tasked to prepare a report for potential investors that allows them to understand the potential social, ethical and legal opportunities and risks of a technology, selected from a list of top ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Why might a bank avoid the use of interest rate swaps even

Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate

Describe the difference between zero coupon bonds and

Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p

Compute the present value of an annuity of 880 per year

Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As

Compute the present value of an 1150 payment made in ten

Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int

Compute the present value of an annuity of 699 per year

Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As