Determine the ka of an acid
Determine the Ka of an acid whose 0.294 M solution has a pH of 2.80
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Calculate the number of moles of gas in a 3.24 L basketball inflated to a total pressure of 24.3 psi (pounds per square inch) at room temperature (25 degrees Celsius).
The value of Kp for Br2(g)............2Br(g) at 700 K is 2.9e-5.At 500 K value of Kp be higher,lower or the same as that at 700K.Explain ? first predict whether this reaction is endothermic or exothermic?
Calculate the concentrations of all species in a 1.29 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid are Ka1=1.4x10^-2 and Ka2=6.3x10^-8.
A piston has an external pressure of 13.0 atm. How much work has been done in joules if the cylinder goes from volume of 0.150 liters to 0.570 liters?
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Explain how the solution containing equimolar amounts of HCHCO2 and KCHO2 resist change in pH when strong acid is added and also when strong base is added?
A certain string just breaks when it is under 400 N of tension. A boy uses this string to whirl a 10-kg stone in a horizontal circle of radius 10 m. The boy continuously increases the speed of the stone. At approximately what speed will the string
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