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Sodium azide (NaN3) is sometimes added to water to kill bacteria. Calculate the concentration of all species in a 0.010 M solution of NaN3. The Ka value for hydrazoic acid (HN3) is 1.9 * 10-5.
Which of the following correctly summarizes the exact relationships between the SN values of 2 to 6, the hybrid orbital names, and the predicted geometries for molecules that have hybridized central atoms?
A flexible container initially holds 2.0 moles of an ideal gas at 293K and 1.0 atm. The container is compressed isothermally
An element has two isotopes with masses of 62.9396 u and 64.9278 u,and 30.83% of the atoms are the heavier isotope. Calculate the atomic mass of this element and give its name and symbol.
A pipette is used to add 46 mL of 0.3 M Pb(NO3)2 to a 273.0 mL solution of 0.3 M NaF. Determine the equilibrium concentration of Pb2+(aq) in the final solution. Ksp(PbF2)=3.6E-8
Calculate the pH of a solution resulting from mixing together the following: a) 37ml of HCL 0.1M+33ml of NaOH 0.03M b) 55ml of HNO3 0,7M+88ml of KOH 0.8M c) 170 ml of H2SO4 0,44M_29ml of NaOH 1.2M d)76 liters of HBr 0.01M+2 liters of Mg(OH)2 2.1M.
Draw the structure of the isomer of C4H9Cl that is least reactive in an SN2 reaction. Do not consider stereochemistry.
1) Why is it important to clean up any spills immediately, wash hands frequently, and wash glassware thoroughly when working with crystal violet solutions?
If the surface area of a human body is 16,100 square centimeters, what is the total weight of the atmosphere on a human body
Calculate the deltaG for the hydrolysis of ATP in liver, muscle, and brain cells using the following table. In which cell type is the free energy of ATP hydrolysis more negative?
The density of so-called "heavy water"=1.1053 g/mL at 20 0C. determine what would be the mass of the flask when filled with heavy water?
You are required to prepare a review-type essay on Electrochemistry. Insert your completed review essay into a soft-bound cover with a clear plastic front.
Synthesizing ethers via acid-catalyzed condensation reactions has limited usefulness. The conditions (sulfuric acid and heat) are also conducive to elimination products. Clarification of Organic Chemistry
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