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How many water molecules are in 5.15 g of magnesium sulfate heptahydrate (Epsom salts)?
So hardly change with temperature, determine the temperature in K at which the spontaneity of this reaction changes.
How many grams of ethylene glycol (automobile antifreeze),C2H6O2 dissolved in 3.15kg of water is needed to lower the freezing point of water in an automobile radiator to 23.0 C
Use the solution pH to calculate the concentration of hydronium ion present
A chemist prepares a solution by dissolving 4.168 g of NaNO3 in enough water to make 200 mL of solution. What molar concentration of sodium nitrate should appear on the label.
You are a member of EPA enforcement team investigating the possible ongoing dumping of arsenic in Cavalier Lake. You take water samples from the middle of the lake and find that the concentration is 89.6 ppb. 10 days later you take another sample ..
A) A saturated solution of metal hydroxide, M(OH)2, has a pH of 10.05. Calculate the molar solubility and the Ksp for this metal hydroxide. M(OH)2 (s) M2+ + 2OH- (aq) B) What is the molar solubility of this metal hydroxide in 0.10 M M(NO3)2
This is vital to Jack Daniels- The vapor pressure of ethanol is 115 mmHg at 34.9 degrees C. By means of the fact that: DELTA Hvap of ethanol is 40.5 kJ/mol compute the temperature in Celsius when the vapor pressure of ethanol is 700 mmHg.
Ignoring activities find out the molar solubility of copper (I) aside (CuN3) in a solution with a pH of 12.04. Ksp (CuN3) = 4.9 × 10-9; Ka (HN3) = 2.2 × 10-5.
In a combustion experiment, .73g of an unknown hydrocarbon was burned in the presence of excess oxygen. This reaction produced .452 g CO2 and .087 g H2O. How many moles of carbon were in the original hydrocarbon sample
The ReO3 structure is cubic with Re at each corner of the unit cell and one O atom on each unit cell edge midway between the Re atoms. Define this unit cell and determine
Carbon forms an unusual unstable oxide of formula C3O2, called carbon suboxide. Carbon suboxide is made by using P2O5 to dehydrate the dicarboxylic acid called malonic acid, which has the formula HOOC-CH2-COOH. Write a balanced reaction for the pr..
1.isobutene is formed by following radical polymerization process that follows chain transfer to monomer is the
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