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A cook wants to heat 1.24 kg of water from 25.0 degrees celsius to 100.0 degrees celsius. If he uses the combustion of natural gas (which is exothermic) to heat the water, how much natural gas will he need to burn? Natural gas produces 49.3 kJ of heat per gram. (For the sake of simplicity, assume that the transfer of heat is 100 % efficient.)
If we could take IR spectra on decanedioyl chloride and the product that you made, which of these two molecules would you expect to show higher C=O stretching frequency. Why
a 1004.0 g sample of calcium carbonate that is 95 pure gives 225 l of carbon dioxide at stp when reacted with an excess
Name and list the functions of the prosthetic group(s) associated with a) HDLs , b) interferons, c) viruses , and d)hemoglobin
the extinction coefficient of a substance is 2.5 x 104l cm-1mol-1. you need to prepare a standard curve of this
Discuss the probable reasons for the differences in flow patterns in a horizontal heated tube as compared to (i) vertical heated tube (ii) horizontal unheated tube?
if you had a mixture of three compounds phenacetin acetaminophen and aspirin a tlc plate showed three spots of rf 0.1
A 15 mL sample of 0.100 M Ba(OH)2 is titrated with 0.12M HCl. Calculated the equivalency point, and the pH after 5mL, 10 mL, 15 mL, and 20 mL of HCl are added.
Make a graph that depicts change in pH versus the amount of acid that you added to tris solution. how would you label axes and legend
solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate.
If electricity of sufficient voltage is passed into a solution of potassium iodide in water, a reaction takes place in which elemental hydrogen gas and elemental iodine are produced, leaving a solution of potassium hydroxide. Write the unbalanced ..
The "lead" in lead pencils is actually almost pure carbon, and the mass of a period mark made by a lead pencil is about 0.0001g How many carbon atom's are in the period?
Calculate the equilibrium pressure of NO if 2.00 atm and 1.00 atm of O2 are initially placed in a 1.0L container at 440K and the final total pressure in the container
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