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A half-life of phosphorus-32 =14.0 days. starting with six grams of 32P, determine how many grams would remain after 112 days
The following reaction was monitored as a function of time:
AB = A + B
A plot of 1/[AB] versus time yields a straight line with slope 5.8×10-2 .
If the initial concentration of is 0.210, and the reaction mixture initially contains no products, what are the concentrations of and after 70?
A .500M solution of a weak acid, HX, is only partially ionized. The [H+] was found to be 3.69x10^-3M. Find the dissociation constant for this acid.
How much PV work is done, and what is the value of ΔE for the reaction of .50 mol of H2 with .25 mol of O2 at atmpospheric pressure if the volume change is -5.6L
How much 0.20mol/L sodium hydroxide should be combined to this buffer to raise the pH to 5.1? If the same amount of 0.20 mol/L sodium hydroxide were combined to 250mL of deionized H 2 O, Determine New pH?
Greenhouse gases generated from human activity absorb infrared radiation from the Earth and keep it from being dispersed outside our atmosphere. This is a major cause of global warming
Calculate the molarity and the molality of an NH3 solution made up of 36.5 g of NH3 in 70.0 g of water. The density of the solution is 0.982 g/mL.
Molecular weight and mole concept : key informaiton, If Aluminum Chloride reacts with Copper II Carbonate and 0.25 moles of Aluminum Chloride are used, how much Copper II
High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify chemical substances. The pressures used in this procedure range from around 500 kilopascals (500,000 Pa ) to about 60,000 kPa (60,000,000 Pa).
Consider a gas in a container with an initial pressure, temperature, and volume. What will happen to the volume of the gas if the number of moles are increased 6 times (6x), the pressure is quadrupled and the temperature is tripled
A 50-lb weight hangs from a string. Find the tensions T1 at 50 degrees and T2 at 30 degrees in the string, and write these vectors in terms of the vectors i and j
If toluene(density 0.87) were used to extract ethylene bromohydrin (density 2.41) from an aqueous solution.
a solution of sulphide ct 10-6 m is blended into a 0.4 m sodium chloride solution in a closed container. plot a log
At a certain temperature, the solubility of cadmium fluoride, CdF2, is 0.162 mol/L. Calculate its solubility product constant for this temperature.
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