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1. Compute the henrys law constant of air if the solubility of air in H2O is approximately 2.1 x 10^-3 M at the temperature of 20 degrees Celsius and pressure of 1.0 atm.
2. Determine the range of fat you might expect to obtain if you extracted fat from ten grams of nutmeg (Dried, ground nutmeg typically contains between 20-25% fat by weight.) Assume that your extraction is 95% effective.
A sample of unknown hydrate of FeCl3 weighs 8.693g. After heating the sample to constant mass, the remaining anhydrous salt weighs 5.216g. What is the experimental formula for the hydrate
at 25 degree c the heat of fusion of al is 10.6 kjmol and the heat of sublimation is 326.4 kjmol. what is the heat of
What volume of O2 at 988 mmHG and 33 degree celsius is required to synthesize 12.5 mol of NO
In the following reaction, what mass of mercury(II) oxide, HgO, would be required to produce 473 L of oxygen, O2, measured at STP
Explain the factors that affect rate and relative reactivity. Use a mechanism(s) and reactions to support your claims.
Changing the conditions of the reaction can alter the value of the change in free energy (?G). Sort the following conditions as to whether each would decrease the value of ?
What is the vapor pressure of a solution prepared by dissolving 51.0 g of C6H12O6 (a nonvolatile solute) in 120 g of water? (Assume the solution is ideal.)
A mixture of 2.0 mol of H2 (g) and 1.0 mol of O2(g) is placed in a sealed evacuated container made of a perfect insulating material at 25 C. The mixture is ignited with a spark and it reacts to form liquid water. Find the temperature of the water.
Compute how many ml of C2H3NaO2(0.2 M) need to be added to 200 mL of 0.1 M CH3COOH to make a buffer of pH 5 and also find out what would be the total concentration of C 2 H 3 O 2 be in this (acetate + acetic acid) solution ?
NaOCl, by mass. Assuming that the density of bleach is the same as water, calculate the volume of household bleach that should be diluted with water to make 500.0 mL of a pH = 9.80 solution.
Explain why the Rf values changed when the eluant was changed from 100% petroleum ether to a 95:5 mixture of petroleum ether-ethyl acetate. Why UV light is not a useful visualization technique in every circumstances?
correlation of structure with the melting point.the melting points of a series of 18-carbon fatty acids are stearic
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