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If the freezing point depression of water is -1.86 degrees/m, what would be the freezing point of this solution?
The balences in the lab can weigh a maximum of 220.000 g at once. if a beaker has a mass of 86.4329 g, what is the maximum volum of water
How many moles of NaOH should be added to a solution containing 0.440 moles of formic acid, HCOOH, to prepare a formic acid/formate
Separation of Amines and Carboxylic Acids Using Extraction, Initially have a sample of a water-insoluble, neutral organic compound dissolved in 50 mL methylene chloride that may be contaminated with
It required 16ml of a sodium hydroxide solution titrated against a standard solution of 0.79g of potassium hydrogen phthalate in water to reach equivalence point. What is the molarity of the sodium hydroxide?
A solution of a dye absorbs light of wavelength 480 nm, and for this absorption, the extinction coefficient is 18600 L/mol/cm. A sample of the dye of unknown concentration is placed in an optical cell of path length 1 cm
The soution in contact with the graphite electrode consists of dissolved Sn(NO3)2. The solution in contact with the copper electrode consists of dissolved CuNO3.
A sample of gas occupies a volume of 400 mL at 0.740 atm and 70 oC. Calculate the pressure of the gas if its volume is changed to 360. mL while its temperature is held constant.
Calculate the fraction of space that is occupied by packing spheres in the (a) simple cubic, (b) body-centered cubic, (c) face-centered cubic (close packed) structures
a solution of 0.64 grams of adrenaline in 36.0 grams of CCl4 elevates the boiling point by 0.49 celsius. what is the molar mass of adrenaline?
If the final temperature is 23.5 deg C, what was the unknown volume? (no heat was lost to the surroundings, d of water is 1 g/mL)
In the process of producing sparkling wine from grape juice, the sugar glucose is decomposed to form ethanol and carbon dioxide. If 23 g of C6H12O6 is fermented, what volume of gaseous CO2 will be produced at a temperature of 29°C and a pressure o..
Consider the galvanic cell with Sn2+/Sn and Ag+/Ag both prepared with NO3- as their anion and all solutions prepared at 1.0 M. What is the overall reaction and what is the oxidation half-reaction? Does it occur at the anode or cathode
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