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A particular solid has a structure in which W atoms are located at cube corners, O atoms at the centers of the cubic edges, and Na atoms at cube centers. The edge is 3.86 angstroms.
A 0.0560 g quantity of acetic acid is dissolved in enough water to make 50.0 mL of solution. Calculate the concentration of H+, CH3COO-, and CH3COOH at equilibrium. Ka for acetic acid= 1.8x10^-5.
The only difference is the H+-ATP stoichiometry. Given that the pH on the outside of the xeno-mitochondrial membrane is 6.014,
The molar heat capacities of Iron and Gold are 25.19 J/(mol*(*C) and 25.41 J/(mol*(*C) respectively. What is the final temperature of the water and the metal?
Show that the species Co^3+ (aq) will spontaneously decompose to CoO2 (s) and Co^2+ (aq) at PH 0 the question need to solve for the potential at both pH of 0 and pH of 5 to prove that at pH of 0 the cobalt will decompose spontaneously, but at pH o..
dry-cleaning solvent (molecular weight = 146.99 g/mol) that contains C, H, and Cl is suspected to be a cancer-causing agent. When a 0.133 g sample was studied by combustion analysis, 0.239 g of CO2 and 0.0323 g of H2O formed. How many moles of eac..
7.2 liters of an ideal gas are contained at 4.0 atm and 27 °C. Using the ideal gas law, calculate how many moles of this gas are present.
Initially, the left compartment contains 1.0mol of N2, the middle contains 3.0 mol of O2, and the right contains 4.0 mol of H2 at 298 K. Calculate the Gibbs energy and entropy of mixing when the partitions are removed.
Assume that you have carried out a radical chlorination reaction on (R)-2- chloropentane and have isolated (in low yield) 2,4-dichloropentane.
Consider the crystalization of sulfanilamide from 95% ethyl alcohol. If impure sulfanilamide is dissolved in the minimum amount of 95% ethyl alcohol at 40 degrees celcius rather than 78 degrees celcius
Draw on a P-V diagram the following processes. Label accurately each point in the four steps of the cycle using p,V,T for variables e.g. Va. The working substance is a perfect gas. Start from A. Show direction of change using arrow heads.
methylamine (CH3NH2 Kb=3.6x10^-4) with 25.0 mL of 0.10 M benzoic acid (C6H5COOH Ka=6.3x10^-5), will the resulting solution be acidic, basic or neutral?
What is the minimum flow rate of water (? = 0.990 g/mL) required to scrub out 90.0% of the incoming NH3? What is the mole fraction of NH3 in the scrubbed waste gas stream?
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