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A new diet fad has just arrived. The idea is to drink cold water; the body has to burn up glucose to furnish energy to warm the water to body temperature. Thus let's see if this idea's reasonable. Define how many liters of water at five degrees Celsius would once have to drink to metabolize 1 kg (2.2 lbs) of glucose and lose that much weight? Body temperature is 37 degrees Celsius. Glucose is C6H12O6 (180 g/mol) as well as the enthalpy change for the metabolism of glucose is -2802 kJ/mol
a method for the determination of copper yields results that are too low by 0.47mg. What will be the percent relative error due to this source if the weight copper in a sample is 45.3 mg
What was the molarity of the KOH solution if 23.2ml of 1.50 M H2SO4 was needed? The equation is 2KOH(aq) + H2SO4(aq)----->K2SO4(aq) + 2H2O(l)
Calculate teh energy absorbed in (kJ/mol) by a carbon dioxdie molecule that has absorbed a single photon of Thermal IR light having wavelength of 15 micrometers.
Microwave ovens emit microwave energy with a wavelength of 12.2 cm. What is the energy of exactly one photon of this microwave radiation
For each of the following, write chemical equations showing how an aqueous solution containing the indicated solutes in comparable concentrations can act as a buffer solution.
Calculate the mass of CuS produced and the concentration of H+ ion produced by bubbling H2S into 1.00 L of 0.10 M CuCl2 (aq) solution. The net ionic equation is:
Use the octet rule to predict the formula of the simplest compound formed from hydrogen and silicon.
Combustion of natural gas (primarily methane) occurs in most household heaters. The heat given off in this reaction is used to raise the temperature of the air in the house.
separation of acetone from water by using mibk.a stream containing 30 wt acetone and the balance water is to be
Toluene (C6H5CH3) is a liquid compound similar to benzene (C6H6). Calculate the mole fraction of toluene in the solution that contains 132 g toluene and 115 g benzene.
How much heat was given off during combustion fo the sample of pentane. What is the heat of combustion, in kilojoules, per gram of pentane
for if5 draw an appropriate lewis structure. draw the molecule by placing atoms on the grid and connecting them with
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