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Problem- You Add 10 grams of NaCl to one liter of water and 20 grams of glucose to another liter of water. Which one has a higher osmolarity?
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how many moles of carbon dioxide can be produced if one tablet containing 0.0119 mol sodium bicarbonate is dissolved
CaC2(s) + 2H2O(l) = C2H2(g) + Ca(OH)2(aq) . If 34 g of CaC2 are consumed in this reaction, how much H2O is needed?
calculate the change in freezing point of water if 0.0053g of a protein with molecular weight 10083gmol is dissolved in
The decomposition of N2O5 (g) to NO2 (g) and O2 (g) obeys first-order kinetics where k = 3.4 x 10-5 s-1 at 25 C, what is the initial rate of reaction
A block of alumium with a volume of 91.1cm^3 absorbs 64.6 j of heat. If its initial temperature was 33.7C, what is its final temperature
a 100.0 ml sample of a 0.200 molar aqueous solution of k2cro4 was added to 100.0 ml of a 0.100 molar aqueous solution
0.506-kg chunk of ice at 0.0 degrees Celsius is added to an insulated container holding 315ml of water at 20.2 degrees Celsius. Will any ice remain after thermal equilibrium is established
An empty gasoline can with dimensions 15 cm by 40 cm by 12.5 cm is attached to a vacuum pump and evacuated. if the atmospheric pressure is 14.7 lb/in^2.
1. in the experiment measured the voltage of a wet cell. what is the difference between the voltage produced by a cell
If an artificial heart is capable of pumping at least 57,000,000 pints of blood before failure, how long, in years, will it probably last in a patient whose average heart rate is 72 beats per minute and an average stroke volume (the amount of bloo..
Write balanced nuclear equations for (a.) the loss of an alpha particle by thorium- 230 and (b.) the fission of U- 235 to give Ba- 140, two neutrons, and another nucleus.
Suppose now that the electron is attracted to the proton. And they are separated by 10-14 m. Utilize coulomb's law to estimate the attractive energy. Based on results do consider the electron could be found within the nucleus. Explain
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