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What is the standard emf you would obtain from a cell at25oC using an electrode in which I- (aq) isin contact with I2(s) and an electrode in which achromium strip dips into a solution of Cr3+(aq)?
The mass of substance B is twice the mass of substance A, but the specific heat capacity of substance A is four times the specific heat capacity of substance B.
At T=293K and at 50% relative humidity, the pressure of water vapor in equilibrium with liquid water is 0.0115atm. Using the information in P1.8, determine what mass of water is inhaled per hour and the net loss of water through respiration per ho..
Instead of using two 100ml portions of ether. a single extraction had been carried out using one 200 mL portion of ether. What weight of Z would be contained in the ether solution under these conditions
The sun produces energy via fusion. One of the fusion reactions that occurs in the sun is How much energy in joules is released by the fusion of 3.06 of hydrogen-1
5ml of solution A was added to enough water to make 100ml of solution B. Finally 5ml of solution B was added to enough water to make 100ml of solution C. What was the concentration of Erythrosin B in solution A,B, C
How many milliliters of 3.4 M NH4Cl must be added to 250 mL of 0.23 M NH3 to obtain a buffer solution having pH=9.40
Find a formula for the curvature of the function P= nrt/v-nb - (an^2)/(v^2) ,where n, R, a, b,and T are treated as constants.
The coinage metals -- copper, silver, and gold -- crystallize in a cubic closest packed structure. Use the density of copper (8.95 g/cm3) and its molar mass (63.55 g/mol) to calculate an approximate atomic radius for copper.
An ionic compound forms when calcium (Z = 20) reacts with iodine (Z = 53). If a sample of the compound contains 1.29 *10^19 calcium ions, how many iodide ions does it contain
What mass of ammonium chloride should be added to 2.65 L of a 0.165 M NH3 in order to obtain a buffer with a pH of 9.60
The region in a baseball diamond between the bases is a square that is 90 ft on each side. On a given rainy day 2.5 inches of rain fell on the field. What is the mass of the rain that fell in the diamond in grams
does it mean that the solution will shift towards the products because there is excess of reactants? what does it mean when the solution is orange (is it shifting towards products or reactant)?
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