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A saturated long-chain hydrocarbon undergoes complete combustion. Examination of the reaction products reveals that 7 molecules of carbon dioxide also 8 molecules of water vapor are produced for every molecule of the hydrocarbon that burns. State a balanced chemical equation for this reaction.
Determine the concentration of sodium ions in a solution that is formed from mixing 50.0 mL of 0.233M NaCl with 100.0 mL of 0.158M Na2CO3.
for a certain chemical reactiondelta h -156kj . assuming the reaction is at equilibrium classify each of the following
Calculate the change in pH when 3.00 mL of 0.100 M HCl(aq) is added to 100.0 mL of a buffer solution that is 0.100 M in NH3(aq) and 0.100 M in NH4Cl(aq).
Describe the nature and characteristics of PCB's. Why are they of importance to an EH&S or FS professional who encounters them when coming upon an incident scene where they are present?
a 255-mL sample of a HCl solution reacts with excess Ca to produce 14.0 L of H2 gas at STP. what is the molarity (M) of the HCl solution? Ca(s) + 2HCl(aq) > CaCl2(aq) + H2(g)
The concentration of the final solution is .00383 M. Calculate the concentration of the original solution.
Several oxidation reductions take place. List three examples of oxidation reduction reactions that are involved. Show what is oxidized what is reduced, and indicate which enzyme (E1, E2, E3) is involved.
What is the atomic mass of a metal (M) if 4.50 g of MCl2 produces 4.34 g AgCl in the following reaction? MCl2 + 2 AgNO3 ? 2 AgCl + M(NO3)2
What are two most important characteristics of good recrystallization solvent for a given compound
The gas effuses at a rate that is 0.404 times that of neon in the same apparatus under the same conditions. How many atoms are in a molecule of gaseous white phosphorus?
The bonding in ferrocene involves sharing of the 6 electrons from each cyclopentadienyl ring with the iron atom. Based on the electronic configuration of the iron species in the compound, show that a favorable 18-electron inert gas configuration i..
Which of the following acids (listed with pKa values) and their conjugate base would form a buffer with a pH of 8.10
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