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What is the Cu2+ concentration at 25*C in the cell Zn (s) I Zn2+ (1.0M) II Cu2+ (aq) I Cu(s)? The cell potential is 1.04 V. The standard cell potential is 1.10 V.
a. 0.097 Mb. 1.0 Mc. 2.4 Md. 0.1 Me. 0.0094 M
Find the moment of inertia about the x-axis of the lamina that has the given shape and density (rho). Round in the thousandths place. y = x^2, y = sqrt(x); rho(x, y) = x^2
It is known that the peptide linkage in proteins and peptides is planar and restricted rotation about the carbon-nitrogen bond.
How do I calculate the product distribution calculations of the three peaks? Or the product ratios? The first peak was at 0.600, second at 0.95. Those are the retention times
the bottom layer was removed, and the aqueous layers were combined. HCl (2M) was added to the aqueous layer with stirring to acidify the solution. The solid was collected by suction filtration and then air-dried. What is the overall reaction and w..
A sample of N2 gas occupies 2.40 L at 20°C. If the gas is in a container that can contract or expand at constant pressure, at what temperature will the N2 occupy 4.80 L
a sample of steam with a mass of 0.550 g and at a temperature of 100c condenses into an insulated container holding
A buffer is prepared using the propionic acid/propionate acid-base pair for which the ratio (of acid to base) is 4.50. (a) Enough strong base is added to convert 27% of HC3H5O2 to C3H5O2-. What is the pH of the resulting solution
A 65.25 g sample of CuSO2*5H2O (M = 249.7) is dissolved in enough water to make 0.800L of solution. What volume of this solution must be diluted with water to make 1.00 L of 0.100 M CuSo4
The specific heat of water is 4.18 . Calculate the molar heat capacity of water. What mass of natural gas must you burn to emit 258 of heat
Work function. A photon with 250 nm wavelength hits an Au surface (work function 5.28 eV). What's the kinetic energy (in eV) of the ejected electron? What's its speed (in km/s and mph)
The heat of solution of ammonium chloride is 15.2 kJ/mol. If a 6.323 g sample of NH4Cl is added to 65.0 mL of water in a calorimeter at 24.5°C, what is the minimum temperature reached by the solution?
How many moles of a reducing agent are used in a reaction containing 1.5L of this material which possesses a density of 0.8 and a molecular weight of 56
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