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Calculate the volume of natural gas (methane) required to bring 3.6 L of water to a boil. Assume the initial temperature of the water is 40 C, and the methane is at 1 bar and 25 C. Assume that methane is an ideal gas, the specific heat capacity of water to be constant and equal to 4.184 J/g/K over this temperature range, and the density of water to be 1.0 g/cm3. The combustion of methane is given byCH4 + 2 O2 ? CO2 + 2 H2O ?Hcomb = -890.36 kJ/mol
Explain which of the following aqueous solutions has the strongest ion-dipole attractions: 0.3 M FeBr3, 0.6 M CaCl2, 0.5 M Ba(NO3)2, 0.2 M (NH4)2SO4, 0.9 M KOH
What is the hydronium-ion concentration in a 0.025 M solution of carbonic acid, H2CO3? For carbonic acid,
assume that you have two unlabled bottles, one with cyclohexane and one with cyclohexene. How could you tell them apart by carrying out chemical reactions
How many grams of NH3 can be produced from the reaction of 28 grams of N2 and 25 g of H2
Which statement is true for the cell as it discharges?
Cesium atoms are the largest naturally occurring atoms. The radius of a Cs atom is 2.62angstroms. How many Cs atoms would have to be laid side by side to give a row of Cs atoms
Calculate the number of grams of NaOH per 100ml to give a pH8.0 solution if pure water at pH7.0 is used in the experiment. Repeat this calculation for a pH6.0 solution using HCl.
which of the following shows the acids in order from strongest to weakest? The order of atomic radii is I > Br > Cl
Carry out the correct operation on the following set of values. Give answers in correct units and in the correct number of significant digits.
What is the complete mechanism for the synthesis of triphenylmethanol from phenyl magnesium bromide
In the lower troposphere, ozone is one of the components of photochemical smog. It is generated in air when nitrogen dioxide, formed by the oxidation of nitrogen monoxide from car exhaust, reacts by the following mechanism.
Most community water supplies contain 0.5 ppm chlorine added for purification. What mass of chlorine must be added to 1500. L of water to reach this level. (Hint: the density of water is 1.00 g/mL)
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