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Compute the individual concentrations of HMR and MR in a mixture measured with absorbency 0.604 at 520 microns and absorbency 0.727 at 425 microns.
cake alum aluminum sulfate is commonly used to purify sewage. what mass of precipitate aluminum hydroxide forms when
When an outside plastic envelope is removed, O2 molecules penetrate the paper causing the reaction to begin. A Typical packet contains 250 grams of iron to warm your hands or feet for up to 4 hours.
Calculate the % yield of Al2(SO4) from the reaction: 2Al(OH)3(s) + 3H2SO4(aq) -> Al2(SO4)3(s) + 6H2O(l) given that 205 g of Al(OH)3 react with 751 g of H2SO4 to yield 252 g Al2(SO4)3.
Calculate the specific heat capacity of nickel from these experimental data, assuming that no heat escapes to the surroundings or is transferred to the calorimeter. Specific heat of water = 4.184 J/g oC atomic mass Ni = 58.7 g/mol Calculate your a..
A radiometric dating technique uses the decay of U-238 to Pb-206 (the half-life for this process is 4.5 billion years) to determine the age of the oldest rocks on Earth and by implication the age of Earth itself The oldest uranium-containing rocks..
Write an expression for the quantity 506000 cm in which it is clear that all the zeros are significant.
After the addition of a large excess of the acid solution (in comparision with the acid volume needed to reach the equivalence point). Tell how many milliliters of acid are required to reach the equivalence point.
Calculate the molarity of a 31.45 weight percent acidity% muriatic acid solution given that the solution density is 1.17 g ml
25.00 ml of 0.030 m dipotassium oxalate is titrated with 0.100 m hclo4. at what volume of hclo4 being added is the
What is the pH of the pyridine solution before you begin titrating? B) What is the pH after 75.0mL of the hydrochloric acid solution has been added?
Where can I find a full details about organic named reactions' mechanisms? I am looking for Sonogashira coupling and Barbier mechanisms in details.
A buffer, consisting of H2PO4- and HPO42-, helps control the pH of physiological fluids. Many carbonated soft drinks also use this buffer system. What is the pH of a soft drink in which the major buffer ingredients are 8.00 g of NaH2PO4 and 6.70 g..
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