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The partial pressure of O2 in the lungs ranges from 25 mmHg to 40 mmHg. What concentration of O2 (in grams per liter) can dissolve in water at 37 degrees C when the O2 partial pressure is 40 mm Hg? The Henrys law constant for O2 at 37 degrees C is 1.5x1o^-6 mol/(L-mmHg).
How would the results for atomic weight have differed if the hot water was never brought to a boil?
Calculate the solubility-product constant for PbF2. Ksp = (c) The Ksp of ZnSe at 25 oC is 3.60e-26. What is the molar solubility of ZnSe? solubility = mol/L
To treat a burn on your hand, you decide to place an ice cube on the burned skin. The mass of the ice cube is 12.9 g, and its initial temperature is -13.9 °C. The water resulting from the melted ice reaches the temperature of your skin,
What is the pH of 1.00 L of rainwater that has dissolved 5.47 mg of NO2? Assume that all of the NO2 has reacted with water to give nitric acid. list an example of a strong acid and write its balanced chemical reaction when placed in water.
A 0.250 gram chunk of sodium metal is cautiously dropped into a mixture of 50.0 grams of water and 50.0 grams of ice, both at 0 degrees Celsius. The reaction is 2Na(s)+2H2O(l) yields 2NaOH(aq)+H2(g) enthalpy=-368 KJ. Will the ice melt? Assuming th..
The molar heat capacity of SO2 is given by the following equation: Cpm= 3.093 + 6.967x10^-3 T/K -45.81x10^-7 T^2/k^2 + 1.035x10^-9 T^3/K^3. Calculate delta S for the heating of 1 mol of SO2(g) from 75C to 1350C at a constant pressure of 1 bar
Magnesite MgCO3 and siderite FeCO3 are the Mg and Fe end-members of the magnesite-siderite solid solution.
a certain organic compound was burned producing 1.481 g of co2 and 0.303 g of h2o. the mass of the original sample was
The decomposition of nitrogen dioxide is a second-order reaction. At 550 K, a 0.250 M sample decomposes at the rate of 1.17 mol/Lxmin a). Write the rate expression?
Calculate the concentration of sugar in % (w/v) for a 250mL solution that contains 4.32g of sugar
water in an open beaker evaporates over time. as the water is evaporatingis the vapor pressure increasing decreasing or
What is the total pressure of a gaseous mixyure that contains 3 gases with a partial pressure of 1.2atm oxygen, 0.35 atm carbon dioxide
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