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The molar heats of combustion of three hydrocarbon gases are:
CH4 (methane)= - 890.0 kJ/molC2H6 (ethane)= - 1560.0 kJ/molC3H8 (propane)= - 2220.0 kJ/mol
Find the heat of combustion in kJ/g for each gas. These values are valid at 25°C, where the water produced by the reaction is in the liquid state.
Construct a simulated 1H NMR spectrum, including proton integrations, for CH3OC(CH2OCH3)3. Drag the appropriate splitting patterns to the approximate chemical shift positions;
What molarity of sulfide ion will produce the greatest amount of lead sulfide (Ksp = 8.0 x 10-28) precipitate without precipitating any tin(II) sulfide(Ksp = 1.0 x 10-25)
We want to change the volume of a fixed amount of gas from 725ml to 2.05L while holding the temperature constant. To what value must we change the pressure if the initial pressure is 110kpa
Tartaric acid, which occurs in many fruits, has a molar mass of 150.1 g/mol and contains 63.96% oxygen by mass. How many oxygen atoms are in each tartaric acid molecules.
A diploid organism with a 30,000-kb haploid genome contains 19% T residues. Calculate the number of A, C, G, and T residues in the DNA of each cell in this organism.
Write the carbon first and the H second in the formula and use the underscore key to denote subscripts in the formula.
What is the minimum amount of 6.0 M H2SO4 necessary to produce 20.0 g of H2? according to the following reaction. 2Al(s)+3H2SO4(aq)-->Al2(SO4)3(aq)+3H2(g)
A student studied the clock reaction described in this experiment. She set up Reaction Mixture 2 by mixing 20 mL of 0.010 M KI, 10 mL 0.001 M Na2S2O3, 10 mL 0.040 M KBrO3, and 10 mL 0.10 M HCl using the procedure given. It took about 45 seconds fo..
Consider a diploid cell that contains three pairs of chromosomes designated AA, BB, and CC. Each pair includes a maternal and a paternal member (e.g., A^m and A^p.).
Write the net ionic reaction from the following balanced reactions: 1. FeCl3 (aq) + K3PO4 (aq) = FePO4 (s) + 3 KCI (aq) 2. Ba(NO3)2 (aq) + Ag2SO4 (aq) = 2 AgNO3(aq) + BaSO4 (s)
Draw trans-1-methyl-4-isopropylcyclohexane oin its two chair flipped forms. Indicate which of chair conformations
Compare the length of a column of mercury to that of a column of water required to produce a pressure of 1.0 bar. the densities of mercury and water at 0C are for mercury 13.596g/cm^3 and for water .99987g/cm^3.
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