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Problem- potassium perchlorate, KClO4(s) is soluble in water to the extent of 0.70 grams per 100.0 ml at 0 degrees Celsius. What is the Ksp of KClO4 at 0 degrees Celsius? FW of KClO4 is 138.55.Please illustrate all steps so I can understand the problem. Thanks.
Problem- Calculate the Ecell and indicate whether the overall reaction shown is spontaneous or nonspontaneous
An evaluation of R was performed, following the procedure described in this module. The barometric pressure was 736 torr, the temperature was 295 K, and the volume of hydrogen gas collected was 35.6 mL. The calculated value of R was 82.1mL atm K-1..
How much heat is required to convert 46.0 grams of ethanol in the liquid state at 25 degrees C to the vapor state at its boiling point of 78 degrees C, given the specific heat of the liquid is 2.3 J/g-K and its delta Hv is 38.56 kJ/mol
Question- At 25°C only 0.0250 mol of the generic salt AB is soluble in 1.00 L of water. What is the Ksp of the salt at 25°C
lead poisoning in children used to be treated with intravenous injections of EDTA. If the concentration fo EDTA in the blood of a patient is 2.55 x 10^-8 M and the formation constant for the complex, [Pb(EDTA)]2-, is 2.00 x 10^18
Which one is pure of the following; Bronze and brass, Sugar, carbon dioxide and water, Soda water and brass, Gasoline
what would be the saturation concentration molel of oxygen o2 in a river in winter when the air temperature is 0degc if
The oxalate in the compound was found by KMnO4 titration to constitute 54.81% of its mass. Molar mass of C2O4 is 88.0193 g/mol
Question- A crystal lattice has copper at all the corner positions and nickel at all the body positions in a unit cell. 1) What is the formula of the unit cell
An elemental analysis shows that it contains 40.0 mass percent C, 6.71 mass percent H, and 53.3 mass percent Oxygen. Remember mass percent = grams. A determine the empirical formula. B. determine the molecular formula.
A solution of volume 0.500L contains 1.68g NH3 and 4.00g (NH4)2SO4 . How many milliliters of 12M HCl must be added to 0.500 L of the original solution to change its pH to 9.00?
for the following processes at 700 degrees celcius what is the partial pressure of each gas if the total pressure is
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