Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
A 1.992g sample of octane, C8H18, is burned in a calorimeter that has a calorimeter constant of 144 J/celcius and contains 750.0g of water. the temperature of the water rose from 14.73 celcius to 42.78 celcius. Determine the enthalpy of combustion for the C8H18.
A 500-g sample of Al2(SO4)3 is reacted with 450 g of Ca(OH)2. A total of 596 g of CaSO4 is produced. What is the limiting reagent in this reaction, and how many moles of excess reagent are unreacted?
if the the atmospheric pressure is 685 mm Hg, what would the partial pressure of oxygen and of nitrogen be?
a gas mixture consists of N2, O2, and Ne where the mole fraction of N2 is .55 and the mole fraction of Ne is .25. If the mixture is at STP in a 5.0 L container, how many molecules of O2 are present.
Explain what is meant by Chousekeeping gene and why the gene for enolase is not considered a housekeeping gene despite it being expressed in all tissues.
Use the Henderson and Hasselbalch equation to calculate the pH of a buffer solution that is 0.45 M in NH4Cl and 0.15 M in NH3
Approximately how many grams of calcium nitrate were required to react totally with 40.0 g of sodium carbonate? How many grams of product were formed at that point? Do your answers appear to obey the Law of Conservation of Matter?
Calculate the mass defect in Fe-56 if the mass of an Fe-56 nucleus is 55.921 amu. The mass of a proton is 1.00728 amu and the mass of a neutron is 1.008665 amu.
The standard reduction potential for the reduction of Eu3+(aq) to Eu2+(aq) is -0.43V. Which of the following substances is capable of reducing Eu3+(aq) to Eu2+(aq) under standard conditions?
the structure Y---X---Y (2 lone pairs around X) could be abbreviated as XY2Z2. Classify these structures according to their shape.
Using the values for the resonance energies of benzene and naphthalene given above, explain why Diels-Alder reactions of anthracene take place at the center ring, not one of the end rings.
How does the addition of aqueous NH3 to a solution separate and identify Cu2 and Bi3 ions? Why wouldn't the additon of a strong base, such as KOH, work just as well as the addition of aqueous NH3?
Estimate the free energy change (?Grxn) for the following reaction at 298 K, if each gaseous substance is present at p = 0.30 atm. 2H2(g) + O2(g) ? 2H2O(l)
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd