How many grams of water are present in the sample
The freezing point of t-butanol is 25.50C and Kf is 9.1C kg/mol. Usually t-butanol absorbs water on exposure to air. If the freezing point of a 10.0g sample of t-butanol is 24.59C. How many grams of water are present in the sample?
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What is the enthalpy of this reaction? Assume that no heat is lost to the surroundings or to the coffee cup itself.
Ionic concentrations of Na+ and K+ ions in the plasma of mammalian cells are 145 and 4 mM, and in the cytoplasm are 12 and 140 mM, respectively. Calculate the magnitude of electrical potential across the membrane.
What is the CAS number for 6-ethoxycarbonyl-3,5-diphenyl-2-cyclohexenone
what are the magnitude and direction of the maximum force on the man from the woman? what are the magnitude and direction of the maximum acceleration of the woman and the magintude.
If the freezing point of a 10.0g sample of t-butanol is 24.59C. How many grams of water are present in the sample?
How many kilograms of chalcopyrite must be mined to obtain 315 of pure?
What is the buffer capacity of the solution? That is, how many millimoles of strong acid or strong base can be added to the solution before any significant change in occurs?
Pouring liquid nitrogen onto a balloon decrease the volume of the balloon dramatically. Afterward, the balloon reinflates. Use kinetic theory to explain this sequence of events. The temperature of liquid nitrogen is -196 C.
A 89.0-kg person stands on a scale in an elevator. What is the apparent weight in each of the following situations?
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Research and analyze the relationship between a P5 nation and a non-P5 nation with which it has had a significant political, economic, or military dispute
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