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What volume of a 0.23 M solution of copper sulfate is needed to contain 3.21 millimoles of copper sulfate?
At 50 C, the solubility of silver chloride, AgCl is 5.2 x 10^-4 g/100mL. Calculate the Ksp at this temperature.
What are some ways to induce recrystallization (Name 3), if your solute refuses to recrystallize after performing the required 7 steps? the seven-step recrystallization procedure
Bromothymol blue is a common acid-base indicator. It has a Ka equal to 1.6 X 10^-7. Its unionized form is yellow and its conjugate base is blue. What color would a solution have at pH=5.8?
How many grams of ethyl alcohol, C2H5OH, must be added to 1.000 kg of water so that the solution will not freeze until -20 degrees Celsius? For water, Kf=1.86 degrees Celsius/m
The corresponding densities of liquid water and water vapor are 0.958 kg/L and 0.000598 kg/L, respectively. Calculate the change of pressure for a one degree change in temperature.
A gas mixture is made by combining 8.1 g each of Ar, Ne, and an unknown diatomic gas. At STP, the mixture occupies a volume of 19.20 L. What is the molar mass of the unknown gas?
How many liters of N2 gas result at 25.0oC and 1.10 atm pressure when 125 grams of NaN3 react
ideal gas in 2.0 L what will be the volume of the gas if the pressure on the container is doubled while the temperature is reduced from 400 K to 200 K.
Calculate the Ksp for Na2B4O5(OH)4 from this data. d. What is the free energy change for the dissolution of Na2B4O5(OH)4 at this temperature?
a 4.0 gram sugar cube is dissolved in a 350 milliliter teacup. what is the molarity of the sugar solution.
A) How many ions will this compound create in aqueous solution ? B) What is the coordination number of chromium ?
An unknown metal with a mass of 100 g was heated to 100 C and placed into 30.0 g of water that had a temperature of 20.2 C. The final temperature of both substances
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