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Lemon juice has a pH of 2.5. assuming that the acidity of lemon juice is due solely to citric acid, that citric acid is a monoproctic acid, and that the density of lemon juice is 1.0 g/ml, then the citric acid concentration calculates to 0.5% by mass. estimate the volume of 0.0100 M NaOH required to neutralize a 3.71 g sample of lemon juice. The molar mass if citric acid is 190.12 g/mol.
Exactly 18.9 mL of water at 26.0 C are added to a hot iron skillet. All of the water is converted into steam at 100C. The mass of the iron skillet is 1.35kg and the molar heat capacity of iron is 25.19 J/mol C. What is the temperature change of th..
two solutions initially at 24.60degc are mixed in a coffee cup calorimeter ccal 15.5 jdegc. when a 100.0 ml volume of
The presence of the radioactive gas radon (Rn) in well water obtained from aquifers that lie in rock deposits presents a possible health hazard in parts of the United States.
A copper refinery produces a copper ingot weighing 131 lb. If the copper is drawn into wire whose diameter is 8.25 mm, how many feet of copper can be obtained from the ingot
Write the balanced (i) molecular equation, and (ii) net ionic equation which show what happens when aqueous solutions of barium nitrate and potassium sulfate are mixed together. Identify the spectator ion(s) Is this correct
Silver sulfide is the tarnish that forms over time on polished silver. If a saturated aqueous solution of it at a certain temperature has a [Ag+] = 4 x 10^-17, what is the solubility product of silver sulfide at this temperature
For which of the following equilibrium systems will the equilibrium position temporarily shift in the forward direction when the pressure is increased
How many grams of malonic acid would be needed to make 50.0 milliliters (0.0500 L) of 0.200 M malonic acid?
If an analytical method has been developed and the retention time for a particular anabolic steroid has been determined, how might you use this method to determine the possibility of the use of anabolic steroids by an athlete.
For the list of chemicals below, write complete, balanced equations for all possible reactions that would lead to an insoluble salt.
When a bulkheterojunction organic solar cell was irradiated with monochromatic light of 8 mW/cm2, it showed the short circuit photocurrent of 3 mA/cm2. Find at which wavelength (nm) the monochromatic light was irradiated. The external quantum effi..
Calculate the wavelength of the electromagnetic radiation required to excite an electron from the ground state to the level with n = 5 in a one-dimensional box 39.8 pm in length.
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