What volume of water is needed to dissolve calcium carbonate
Calcium carbonate, or limestone, is relatively insoluble in water. At 25?C, only 5.8 mg will dissolve in 1.0 liter of water. What volume of water is needed to dissolve 5.0 g of calcium carbonate?
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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).
The rate constant for the equation is 0.0406 M-1 s-1. We start with 0.236 mol C2F4in a 3.00-liter container, with no C4F8initially present. What will be the concentration of C2F4after 3.00 hours?
The transmittance of the mixture was read and compared to a calibration curve which indicated a concentration of I3^- as 5.52*10^-4 M. Calculate the following: c.) The concentration in moles/L of IO3^- in the original sample.
A hydrated iron chloride compound was found to contain 20.66% Fe, 39.35% Cl, and 39.99% water. Determine the empirical formula of this hydrated compound.
sodium hydroxide is extremely soluble in water. At a certain temperature, a saturated solution contains 551g of NaOH (s) per liter of solution. Calculate the molarity of this saturated NaOH (aq) solution.
Suppose that 194.2 J of heat energy is required to completely vaporize 3.3 g of a pure liquid. If the molar mass of the liquid is 91.92 g/mol, what is the molar enthalpy of vaporization of the liquid?
A sphere of copper is subjected to 81.1 MPa of pressure. The copper has a bulk modulus of 130 GPa. By what fraction does the volume of the sphere change?
Calculate the mass of nitrogen dissolved at room temperature in an 98.0 L home aquarium. Assume a total pressure of 1.0 atm and a mole fraction for nitrogen of 0.78.
Copper (II) sulfate dissolves in water to form a blue solution. What species are present in the solution, ie, what is actually swimming around in the solution? Write the formulas.
If you shine a light beam through this sample, minimal light passes through ( assume no light passes through). What if your sample allows 50% of light to pass through? How many bacteria are in your sample.
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