Explain what mass, in g, of benzoic acid was burned

Assignment Help Chemistry
Reference no: EM13298306

The heat of combustion of benzoic acid (C6H5COOH) is -3226 kJ/mol at constant volume. When a sample of benzoic acid was burned in a bomb calorimeter having a calorimeter constant of 12.5 kJ/oC, the temperature of the calorimeter (including its contents) rose from 23.18oC to 27.65oC. What mass, in g, of benzoic acid was burned?

What i did, just unsure of my answer. (delta) T = 4.474

took 3226/122.13=26.41

4.474*12.5/26.41 = 2.12g Is this correct?

Reference no: EM13298306

Questions Cloud

What is the terminal, or horizon value of operation : What is the terminal, or horizon, value of operation? (hint: find the value of all free cash flows beyond year 2 discounted back to year 2)
Find the speed of the water leaving the end of the hose : Water flowing through a garden hose of diameter 2.73 cm fills a 21.0-L bucket in 1.60 min. find the speed of the water leaving the end of the hose
What is its intrinsic mva : A company has capital of $200 million. It has an EROIC of 9%, forecasted constant growth of 5%, and a WACC of 10%. What is its value of operations? What is its intrinsic MVA?
How to compute the final lengths and azimuths of lines : calculate departures and latitudes, misclosures in departures and latitude, and traverse relative precision. Balance the departures and latitude using the compass rule, and calculate coordinates of points B, C, and D.
Explain what mass, in g, of benzoic acid was burned : When a sample of benzoic acid was burned in a bomb calorimeter having a calorimeter constant of 12.5 kJ/oC, the temperature of the calorimeter (including its contents) rose from 23.18oC to 27.65oC. What mass, in g, of benzoic acid was burned
Estimate the cost of the receiveables loan to johnson : Estimate the cost of the receiveables loan to Johnson when the firm borrows the $300k. The prime rate is 11%.
Determine the speed at which the water leaves the hole : A large storage tank, open to the atmosphere at the top and filled with water, Determine the speed at which the water leaves the hole
Determine the amount of gross profit : How much revenue will Sanderson report in its 2006 and 2007 income statements related to this contract using the percentage-of-completion method?
Explain eccentric professor has a special request for coffee : Assume the eccentric professor has a daily special request for her coffee. She likes to have the 250.0 mL of coffee frozen at -15.0°C overnight and then want it heated to 95°C when she gets there in the morning.

Reviews

Write a Review

Chemistry Questions & Answers

  Evaluate the percent by mass of calcium carbonate

Dissolving 4.69g of an impure sample of calcium carbonate in hydrochloric acid produced 1.07 L of carbon dioxide (measured at 20.0 degrees Celcius and 737mmHg). Calculate the percent by mass of calcium carbonate in the sample.

  What volume would this gas occupy

a sample of gas at 77 degreees celsius and 1.03 atm occupies a volume of 2.02L. What volume would this gas occupy at 107 degreees celcius and 0.789 atm.

  How much hcl gas can be produced

How much HCl gas can be produced at STP by reacting 198 g of NaCl with excess H2SO4?NaCl + H2SO4 ! NaHSO4 + HCl.

  Calculate the molarity of a solution of hydrochloric acid

Calculate the molarity of a solution made by adding 27.8 mL of concentrated hydrochloric acid (37.3 % by mass, density 1.19 g/mL) to some water in a volumetric flask, then adding water

  Explain the molar mass of the vapor in the flask

From the time the mass of the flask is first measured until the time it is finally measured, it is handled a number of times with oily fingers. Does this lack of proper technique result in the molar mass of the vapor in the flask being reported as..

  State solution depends on the number of particles

Since the freezing point of a solution depends on the number of particles, what would you expect the freezing point of 0.1 m solutions of aqueous NaCL and BaCl2?

  Find the energy output of 1 gram of gasohol

Typically, gasohol is a mixture of 90% octane H8C18 and 10% ethanol C2H4OH. Determine the energy output of 1 gram of gasohol using the following two pieces of information

  Define splitting patterns and integrations

Splitting patterns and integrations may be used more than once, or not at all, as needed. Likewise, some bins might remain blank. Note that peak heights are arbitrary and do not indicate proton integrations.

  What is the magnitude of k at 75 degrees

A particular first-order reaction has a rate constant of 1.35x10^2 at 20 degrees C . What is the magnitude of k at 75 degrees C if Ea =85.6Kj/mol?

  State a balanced chemical equation to describe the process

complete the following chart of gas properties. For each positive observation, write a balanced chemical equation to describe the process.

  Compute the percentage of nitrogen in the sample

The n.itrogen is converted to N2(g) and collected. given that 350-mg same yields 42.2 ml N2 at STP, calculate the percentage of nitrogen in the sample

  What is the dissociation constant

What is the dissociation constant, Kd, of a ligand with a percent occupancy (or fractional saturation) of 50% when [ligand] = 10-7 M? HINT; Theta = (ligand) / ((ligand) + Kd) where

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