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A first order reaction A-> Product has a half-life of 19.8 min. What is the rate of the reaction when [A] = 0.632 M
The reaction caused the temperature of the solution to rise from 22.15 C to 26.78 C. If the solution has the same density and specific heat as water
calculate the Al(III) concentration in the original unknown solution by correcting the dilution made when preparing the sample for analysis.Given: 10 mL unknown solution
A saturated solution of unknown metal hydroxide M(OH)2 has a measured pH of 8.91. Determine the value of Ksp for the compound.
say you removed an ice cube at -10 ordmc weighing 36 g from your freezer. now you place the ice cube in a 90 g sample
Calculate the density in kg/m3 using (a) the ideal gas equation of state and (b) the compressibility factor equation of state in conjunction with the law of corresponding states.
An acid with a Ka of 1 x 10-8 is titrated with NaOH, both solutions being 0.020 M. What should the Ka of the indicator be, in order to obtain the best end point
some amount of potassium dichromatenbsp k2cro7 thatnbsp is 2.335 g isnbsp dissolved in enough h2o to prepare a
A 14.0-g sample of CaCl2 is dissolved in 131 g of water, with both substances at 25.0°C. Calculate the final temperature of the solution assuming no heat lost to the surroundings and assuming the solution has a specific heat capacity of 4.18 J/°C ..
An acre-foot of water Covers an acre to a depth of exactly 1 ft. An acre is 4840 yd2. An acre- foot is enough water to supply two typical households for 1.00 yr. (a) If desalinated water costs $1950 per acre- foot, how much does desalinated water ..
boron-fluorine single bonds are approximately 1.52A(152pm) in length. in BF3, the bond lengths are 1.30A. propose an explanation for this discrepancy, making use of resonance structures to illustrate your answer.
The annual production of zinc sulfide (ZnS) is 4.0 x 10^4 tons. Estimate the number of tons of SO2 produced by roasting it to extract zinc metal.
If all of the electron groups around a single central atom are bonding, and the same outer atom is bonded to the central atom in each case, is the molecule polar, nonpolar, or does it depend on the identity of the outer atom?
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