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Calculate the pH you would expect to measure if 15.0mL of 0.5M acetic acid were mixed with 25.0mL of 0.5M sodium acetate
if the radio waves transmitted by a radio station have a frequency of 70.6 Mhz, what is the wavelength of the waves, in meters?
Treatment of ammonia with phenol in the presence of hypochlorite yields indophenol, a blue product absorbing light at 625 nm, which can be used for the spectrophotometric determination of ammonia.
Calculate the P-Cl bond energy, given the following reaction and the average bond dissociation energy of chlorine as 240kJ/mole.
Sulfur trioxide dissolve in water, producing H2SO4. How much sulfuric acid can be produced from 13.5 mL of water and 26.1g of SO3?
Calculate the cell potential for the following reaction as written at 61 °C, given that [Cr2 ] = 0.826 M and [Ni2 ] = 0.0200 M. Cr(s) + Ni ^2+ (aq) --> Cr^2+ (aq) + Ni(s)
Hydrogen peroxide decomposes to water and oxygen, and the activation energy for this process is 42 kJ/mol. The hydrogen peroxide formed in the biological process is harmful to tissue
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
The Henderson-Hasselbalch equation is used to calculate the pH of a weak base, but not the pH of a weak acid.
Pretend 32.15 mL of NaOH of the standardized base is required to titrate a 20.00 mL sample of a 1.000 to 10.000 dilution of the mystery acid. What is the concentration of the acid (before dilution)
A 1.20 sample of dry ice is added to a 745 mL flask containing nitrogen gas at a temperature of 25.0 C and a pressure of 735mmHg .
Bomb Calorimeter, gross heat of combustion, In the following experiment 1.1651g of benzoic acid (6318 cal/gm) produced a net corrected temperature rise of 3.047C, also 8 cm (2.3 cal/cm) of fuse wire were consumed in the firing.
Determine the molar mass of carbon dioxide by measuring the mass of an Erlenmeyer flask full of the gas. The following calculations are intended to familiarize you with the general procedure:
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