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Why is it that when you look into any type of light for a long period of time that blotches of black appear when you look away
a batch of 1000 kg of KCl is dissolved in sufficient water to make a saturated solution at 363K, where the solubility is 35 wt% KCl in water. the solution is cooled to 293K, at which the solubility of KCl is 25.4 wt%.
if 82.7874 grams of oxygen was given off during the decomposition, how many grams of KCIO3 were used?
Write down the electron configurations for C2 and F2. What is the bond order for each? Which one is likely to have larger bond dissociation energy.
Which electrode gains mass and which loses mass as the cell reaction proceeds? What is the equation for the equation for the overall cell reaction?
how do you know weather it undergoes the E1 mechanism or the E2 mechanism?
In the preparation of the esters given in this reaction, the reaction product is extracted with 5% sodium bicarbonate solution (NaHCO3)in the isolation step. Why. What gas is evolved during this washing step. Write a balanced equation for the reac..
The pressure gauge on a 20.0 m3 tank of nitrogen at 25 C reads 10 bar. Estimate the mass of nitrogen in the tank by : (a) Direct solution of the ideal gas equation of state. (b) Conversion from standard conditions.
the temperature of the resulting solution rises from 25.00°C to 37.90°C. If the specific heat of the solution is 4.18 J/(g · °C), calculate ?H for the reaction, as written.
A 261-mL sample of a sugar solution containing 1.35g of the sugar has an osmotic pressure of 30.1 mmHg at 35.5 degrees celcius.
how many grams of potassium bromide are required to prepare 350 mL of a .200 M solution.
In the titration of 50.0 mL of 0.0200 M C6H5COOH(aq) with 0.100 M KOH(aq), what is/are the major species in the solution after the additon of 5.0 mL of NaOH(aq)
Determine the [OH-] of a solution that is 0.230 M in HCO3-. Also determine the pH of this solution.
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