A sample of 400 g of a substance with a molar mass of 800

Assignment Help Chemistry
Reference no: EM13595278

A sample of 4.00 g of a substance with a molar mass of 80.0 g/mol is combusted and the heat released is used to heat 750.0 mL of water from 15.0 degrees Celsius to 22.0 degrees Celsius. Calculate the (delta)H in kJ/mol.

Reference no: EM13595278

Questions Cloud

Pacific airlines has three service departments ticketing : pacific airlines has three service departments ticketing baggage handling and aircraft maintenance. costs of these
The ka for h2po41- is 63 x 10-8 the ka for hs1- is 13 x : the ka for h2po41- is 6.3 x 10-8. the ka for hs1- is 1.3 x 10-13. both are amphoteric substances.a what does amphoteric
Given fech3coo3nbspcan dissolve in water and form the : given fech3coo3nbspcan dissolve in water and form the following species fe3 feoh2 feoh2 ch3cooh ch3coo-. nbspwrite
Each component contains different metals and minerals the : a sample of beach sand contains sand particles of different colors small pebbles and also shells. each component
A sample of 400 g of a substance with a molar mass of 800 : a sample of 4.00 g of a substance with a molar mass of 80.0 gmol is combusted and the heat released is used to heat
Stephen bosworth a super salesman contemplating retirement : stephen bosworth a super salesman contemplating retirement on his fifty-fifth birthday decides to create a fund on an 9
Store a had sales of 80000 during march a contribution : store a had sales of 80000 during march a contribution margin ratio of 30 and a segment margin of 11000. the company as
Your client is alls fair appliance company an appliance : your client is alls fair appliance company an appliance wholesaler. select the most appropriate audit procedure from
The vapor pressure of pure water at 25degc is 283 mmhg : some kcl is dissolved in water 25degc where it completely dissociates. the vapor pressure of pure water at 25degc is

Reviews

Write a Review

Chemistry Questions & Answers

  Calculate the molar mass of n2o3

One mole of carbon-12 atoms is equal to a mass of exactly how many grams of carbon-12 atoms?

  Define how many atoms of chromium are used in the coating

An object is coated with a layer of chromium that is 0.015 cm thick. If the object has a surface area of 15.3 cm squared, how many atoms of chromium are used in the coating. The density of chromium is 7.19 g/cm cubed.

  Water boils at 373 kthe molar enthalpy of vaporation for

water boils at 373 k.the molar enthalpy of vaporation for water is 407 kjmo1.if one mole of water is at 373 k when it

  Determine the original composition of the feed mixture

A feed mixture weighing 200 kg of unknown composition containing water, acetic acid, and isopropyl ether is contacted in a single stage with 280 kg of a mixture

  In one city a balloon with a volume of 60 l is filled with

in one city a balloon with a volume of 6.0 l is filled with air at 101 kpa pressure. the balloon in then taken to a

  Explain the portion of heat energy lost to the calorimeter

Suppose the calorimeter for this experiment had been made of a heat-conducting material (such as metal) rather than plastic foam, so that the portion of heat energy lost to the calorimeter itself was larger and could not be ignored

  Explain the rate constant for a certain reaction

The rate constant for a certain reaction is = 4.60×10-3 s^-1. If the initial reactant concentration was 0.900 M , what will the concentration be after 5.00 minutes

  Explain stock hno3 solution to obtain a hno3 solution

To what volume should you dilute 45mL of a 12M stock HNO3 solution to obtain a 0.121M HNO3 solution

  Explain the non aqueous reaction of pyridine and sncl4

Why does the non aqueous reaction of pyridine and SnCl4 produce a white precipitate

  Explain the preparation of acetate buffer

Decribe the preparation of the 100mL of a 50 mM acetate buffer at pH 5.5 beginning iwth sodium acetate and 1M acetic acid

  Explain what is the equilibrium concentration of cu+ (aq)

What is the equilibrium concentration of Cu+ (aq) in a solution that is 0.0200M solution in CuNO3 and 0.450M HCl (aq)

  State a wastewater disposal well for carrying various wastes

A wastewater disposal well for carrying various wastes at different times is drilled into a formation of limestone (CaCO3), and the wastewater has time to come to complete equilibrium with the calcium carbonate before leaving the formation through..

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