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The changege H for the solution process when solid sodium hydroxyde dissolves in water is 44.4 kJ/mol. when a 13.9 g sample of NAOH dissolves in 250.0 g of water in a coffee cup calorimeter, the temperature increases from 23.0 C degrees to ....how many C degrees? Assume that the solution has the specific heat as liquid water 4.18 J/g-K.
what is the total pressure in a cannister that contains oxygen gas at a partial pressure of 804 mm Hg, nitrogen at a partial pressure of 220 mmHg, and hydrogen at a partial pressure of 445 mmHg.
Calculate the solubility (in M units) of ammonia gas in water at 298K and a partial pressure of 6.50bar . The Henry's law constant for ammonia gas at 298K is 58.0 M/atm
What are some of the considerations for the optimal chain length in glycogen? a) Optimal chain length is a compromise between number of available ends, and the need for debranching enzyme
Compare the length of a column of mercury to that of a column of water required to produce a pressure of 1.0 bar. the densities of mercury and water at 0C are for mercury 13.596g/cm^3 and for water .99987g/cm^3.
A sample of gas is heated. During the heating process, the volume of the gas increases 1.7 times. If the initial temperature of the gas is 80°C, what is the final temperature of the gas.
Use the graph from the Introduction that plots the density of ethanol solutions from 20 to 60 mass percent to answer the following questions:
what does it mean to manipulate the solubility of insoluble organic compounds by salt formation
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.100 M HCLO with 0.100 M KOH. The ionization constant for HCIO is 4.0 x 10^-8 a) after addition of 50.0 ml of KOH
If 100 mL of hydrogen gas is placed in a flask, what volume of oxygen gas would need to be added to the flask in order to have complete reaction to form water
determine what is the percent yield of the reaction if 15.0 grams of nitrogen and 2.00 grams hydrogen react to produce
What is the concentration of in mass percent? An aqueous solution has a vapor pressure of 81.9 at 50 . The vapor pressure of pure water at this temperature is 92.6.
a sample of oxygen that occupies 1.00X 10^6 ml at 575 mm hg is subjected to a pressure of 1.25 atm. what will the final volume of the sample be if the temperature is held constant?
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