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What is the pH of a 10-5 M Co(ClO4)2 solution? Check your answer to be certain that Ca(OH)2(S) will not precipitate. (Assume no carbonate is present). The following are for the hydroxyl complexes: log ß1=3.8; log ß2=9.2; log ß3=10.5; log ß4=9.7; log KSO=-14.4
If you didn't have a computer or data system available, how would you measure the area of the peak. After all, someone's DUI may hinge on this measurement, and you may have to defend your calculation in court
what is the total mass in grams of a series of samples that have masses of 753mg,
Calculate the moles of N2 that will be in 224 L at STP and the partial pressure of O2 in Pa for air at 2.50 atm pressure
A scientist wishes to prepare a 1L sample with the approximate composition of seawater for use in the laboratory: what reagents would you recommend and what mass of each
Draw the structure of Caffeine. Skeletal form only. Locate 2 bonds in the molecule that are obviously polar covalent.
Determine how to make the following dilutions for aqueous Cu(NO3)2 from 1.0M stock : 0.50M. The 3 and 2 are both in subscript.
what is the maximum number of electrons in an atom that can have the following set of quantum numbers? In some cases, the answer may be "none" In such cases, explain why "none" is the correct answer a) n=3 b) n=3 l=2 c) n= 4 l= ml=-1 and ms = -1/2..
Radio waves travel at the speed =3.00 108 m/s(speed of light,). if Saturn is 7.9 108 km from Earth then Determine how many minutes does it take for a radio message to reach Earth from Saturn?
What happens to the body that allows it to compensate (over this period of time) for the reduced pressure , so that the athletes will not become lightheaded?
The equilibrium constant for the neutralization reaction of NH3 with an HCl solution at 298 K is: Given Kb=1.8x10^-5
The Henry's law constant for O2 in water at 25 Celsius is given in Table 14.2. Which of the following is a reasonable constant when the temperature is 50 Celsius? Explain the reason for your choice.
A certain gas is present in a 13.0 L cylinder at 3.0 atm pressure. If the pressure is increased to 6.0 atm the volume of the gas decreases to 6.5 L. Find the two constants k1 , the initial value of k, and k1, the final value of k, to verify whethe..
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