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Calculate the pH of the solution formed by the addition of 55.5 mL of 0.100 M NaOH to 49.2 mL of 0.100 M H3PO4.
A balloon equipped with a UV spectrometer was flown in the stratosphere to measure the [O_3] at an altitude of 25 km. The spectrometer had an absorbtion path length of b= 1000.0 m and measured a transmittance of T = 0.6952. Determine the concentr..
For the molecular fragments given below indicate the multiplicity and relative intensities of the peaks that would be produced by the bold-faced hydrogen atoms in a 1H nmr spectrum
what wavelength of light in nm is absorbed by a ground state hydrogen atom could cause an electron to transition to n=3
Determine the charge on each ion in the following compounds, and name the compound. Li2O and CaS
A casting of an alloy in the form of a disc weighed 50 g. The disc was 0.25 inches thick and had a circular cross section of diameter on 1.380 inches. What is the density of the alloy
Assuming that concentrated HNO3 (70% HNO3) is 16M, what is the molarity of a 1:1 HNO3:Water solution
Determine the range of fat you might expect to obtain if you extracted fat from ten grams of nutmeg (Dried, ground nutmeg typically contains between 20-25% fat by weight.) Assume that your extraction is 95% effective.
What is the sum of the stoichiometric coefficients when the reaction is balanced to lowest common denominator
Assuming 100% dissociation, calculate the freezing point and boiling point of 2.75 m K3PO4(aq).
A white precipitate formed when the barium hydroxide solution was mixed with the sulphuric acid. *Mass of filter paper=0.96g *Mass of filter paper and precipitate=5.25g
Assume that the liquid is an ideal solution and apply Raoult's law to find the following. What is the temperature of the liquid
A Cu/Cu2+ concentration cell has a voltage of 0.24 V at 25M . The concentration of Cu^2+ in one of the half-cells is 1.5×10-3 . What is the concentration of Cu2+ in the other half-cell?
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