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A solution is 2.25% by weight NaHCO3. How many grams of NaHCO3 are in 250.0 g of solution?
What observed rotation is expected when a 1.02 M solution of (R)-2-butanol is mixed with an equal volume of a 0.510 M solution of racemic 2-butanol, and the resulting solution is analyzed
From the understanding of colligative properties, how would I design an experiment to measure the freezing point of a material which freezed at -2'c using the same apparatus used in the laboratory and any chemical reagents commonly found in a chemi..
What is the vapor pressure at 75 degrees celcius of an aqueous solution prepared by the addition of 52.9 g of urea CO(NH2)2 to 178 g of water?
2NO2 + Cl2 = 2NOCl The inital pressure of NO2 was 1.577 atm and the inital pressure of Cl2 was 0.427 atm. At equilibrium, the partial pressure of NOCl is 0.624 atm. Calculate K.
A 0.277 g sample of unknown monoprotic acid requires 39.21 mL of 0.1019 M NaOH to reach the endpoint.
What mass (in grams) of solid Na2SO4 would need to be added to 250 grams of water to make an ideal solution with a boiling point of 103.6°C? (Kb for water is 0.512°C/m)
Consider the Bohr model of the hydrogen atom. What would the visible emission spectrum of hydrogen look like if electrons transitioned from a higher orbit to a lower orbit by way of slowly falling into the lower orbit over time while releasing ene..
Assuming that the gas becomes saturated with benzene vapor and that the total gas volume and temperature remain constant, what is the vapor pressure of the benzene in torr
Barium imparts a characteristic green color to a flame. The wavelength of this light is 551nm. Determine the energy involved in kj/mol.
Molecular formula of a compound and Deduce from these data the corresponding equation and write formulas for the oxide and sulfate of M .
It was found that 19.31 mL of an HCl solution are needed to react completely with 322 mL of a LiOH solution that has a pH of 11.56. What is the molarity of the HCl solution?
One mole of an ideal gas (Cv=3/2R) is heated at (a)constant pressure and (b) constant volume from 298Kto 353K. Calculate delta_S for both cases.
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