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A chemist determines by measurements that 0.095 moles of fluorine gas participate in a chemical reaction. Calculate the mass of fluorine gas that participates.
Be sure your answer has the correct number of significant digits.
determine the number of chloride ions in 11.73 g of magnesium
What is the purpose of refluxing the reaction mixture for 45 minutes in nuclephilic substitution (NaBr and 1 butanol and 1 bromobutane experiment
Volume of sample = 90.0 mL. Temperature = 25 C atmospheric pressure = 745 mm equilibrium vapor presssure of water at 25C = 23.8 mm Hg Calculate number of moles of hydrogen gas collected
based on mole ratios. a sample is 59.53 c 5.38h 10.68n and 24.40o what is its empirical formula. a 0.2000 gram sample
Consider 4 moles of a perfect gas with initial volume= 20dm^3, initial temp= 300K, and final volume= 60dm^3. What is the change in entropy for the system, surroundings, and total for the following processes:
a pentapeptide is composed of ala cys lys phe and ser. nh2-terminal analysis of the peptide revealed pth-serine.
Pyridine (C5H5N) is a weak base with Kb = 1.7 x 10-9. What is the concentration of pyridine in a solution of pyridine whose pH = 9.15
Compute the molar solubility of Hg2Cl2 a solution that contains 0.0100M KN03 and is saturated with HG2Cl2(s)
Although the product shown is not the major product of the reaction, notice that there is more than one way it can be produced. Complete the mechanism and draw the missing substances.
Single displacement, double displacement, and decomposition reactions may all be redox reactions. Identify the type of redox reactions
how many liters of pure oxygen gas measured at 45.2 oc and 104.0 kpa are required for the complete combustion of 5.60
A drop of NaOH titrant adheres to the side of the buret (due to a dirty buret) between the initial and final reading for the titration. As a result of the "clean glass" error, will the molar concentration of the NaOH be reported too high or too lo..
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