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127.7g of NaCll completely dissolves (producing Na+ and Cl- ions) in 1.00kg of water at 2.0 degree celcius. the vapor pressure of pure water at this emperature is 23.8 torr. Determine the vapor pressure of the solution.
The formula for caluculating a dilution of a solution is M1V1=M2V2, use this equation to calculate the volume of a 2.0 M solution of sodium carbonate required to make 100mL of a 0.25 M solution. A1) calculate the mass of calium chloride dihydrate
You have a solution that contains both calcium and magnesium nitrate. The concentration of each is 0.1250 M. What is the pH of the solution when the least soluble one is precipitated before the most soluble one starts precipitating
If the 12.5ml of NaOH solution is required to react completely with 0.300g of KHP (Potassium Hydrogen Phthalate, 204.2g/mol). What is the molarity of NaOH
the difference between nucleophilic centers, nucleophiles, electrophilic centers, and electrophiles. Lastly, tell me how to identify all four of these in a given molecule.
The quantum yield for CO production in the photolysis of gaseous acetone is unity for wavelengths between 250 and 320 nanometers. After 20 minutes of irradiation at 313 nm, 18.4 cm cubed of CO
A sample containing 0.00200 mol sample of Ca(OH)2 requires 10.00 mL of aqueous HCl for neutralization according to the reaction:
The solubility of compound A in ethanol is .8g/100 mL at 0 degrees and 5.0g/100mL at 78. What is the minimum amount of ethanol needed to recrystallize a 12.0g sample of compound A
What observed rotation is expected when a 1.54 M solution of (R)-2-butanol is mixed with an equal volume of a 0.770 M solution of racemic 2-butanol, and the resulting solution is analyzed in a sample container that is 1 dm long
What is the final concentration of Na+ after adding 230 ml of water to a stock solution of 2.5M 420.0 ml Trisodium phosphate?
What is the equilibrium concentration of fluorine if the initial concentrations of bromine and fluorine were 0.113 moles/liter in a sealed container and no product was present initially
compare the stabilities of each of the four conjugate bases that would be formed from the doprotonation of the four
a 260.0 ml buffer solution initially contains2.5times10-2 mof hcho2 and2.5times10-2 m of nacho2. inorder to adjust the
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