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1. Based on your knowledge of solubility, make predictions about:
A. The effect of increasing molecular weight (size) on alcohol solubility in water.
B. The effect of more alcohol groups on alcohol solubility in hexanes.
C. The relationship between water and hexane.
Consider the titration of 50.0 mL of 0.200 M HClO4 by 0.100 M NaOH. Calculate the pH after 37.7 mL of NaOH has been added.
calculate the specific heat of a metallic element if 478 J of energy are needed to raise the temp. of a 82.73 g sample from 25.0 C to 50.0 C. what is the most likely identity of the element
How would you prepare 1.000 L of a 1.000 mole L?1, pH 7.50 Tris-aka, tris(hydroxymethyl)aminomethane-buffer? You have pure Tris?HCl, {(HOCH2)3NH+,Cl?}
0.80 g of hydrogen chloride (HCl) is dissolved in water to make 5.5 L of solution. What is the pH of the resulting hydrochloric acid solution?
If 147 g of CaO and 267 g of NH4Cl are mixed, what is the maximum possible yield of NH3?
Calculate the pH of a buffer formed by mixing 95 mL of 0.13 M lactic acid with 85 mL of 0.15 M sodium lactate.
Hydrobromic acid reacts with potassium carbonate to form potassium bromide,carbon dioxide , and water. Barney the incompetent lab tech accidently knocked a flask containing 255ml of 0.500 M hydrobromic acid onto the floor, and now he has to clean ..
An aerosol spray can with a volume of 456 mL contains 3.09 g of propane gas (C3H8) as a propellant. If the can is at 23°C, what is the pressure in the can? What volume would the propane occupy at STP?
A 2.50-L container is filled with 187 g argon. If the pressure is 10.0 atm, what is the temperature?
The density of a gaseous compound was found to be 1.23 g L-1 at 330 K and 25.5 kPa. What is the molar mass of the compound?
A student reacts 0.3000 grams of a sulfate-containing unknown with excess barium chloride. If 0.6500 grams of barium sulfate is produced, what is the percentage sulfate in the unknown?
What differences might you expect in the comparative solubility of each of them in lipids? WHY?
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