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A possible source of systematic error is failure to dry KHP. If this occurred, would the final weight % of Na2CO3 be falsely high, falsely low, or unaffected? How will failure to dry the KHP affect the molarity of the NaOH and HCl solution?
This is referring to an experiment where KHP is used to standardize and NaOH solution and the NaOH solution is used to standardize a HCl solution.The HCl solution is then used to titrate against a soda ash unknown to determine the weight % of Na2CO3.
Identify the mass spectral (MS) peaks you would expect for 4-Heptanone (M+ and m/z for all fragments). Just FYI, the professor said
Calculate the maximum concentration of Ba2+ in water when solid BaCl2 and BaSO4 are present. Calculate whenBaCLs and BaSO4 are seperate and together.
What is the molar concentration of the excess reactant once this reaction has finished? (40%)
A buffer solutions contains .120 M acetic acid and 0.150 M sodium acetate. How many moles of acetic acid and of sodium acetate are present in 50.0 ml of solution ? = 0.0075 moles.
calculate the percent yield based upon the amount of maleic anhydride used. use the molecular weight of one repeating monomer unit for the weight of the product.
at a temperature of 520 degrees C, the equilibrium concentration of HI is 0.80 M, of H2 is 0.010 M, and of I2 is 0.010 M. What is the K for the reaction?
Classify the following compounds and ions as strong acid, weak acid, strong base, weak base, or neutral. For each write the reaction(s) that justify your decision. If a substance is amphiprotic, show both reactions.
In a haloform reaction with chloride, what reaction step is pertinent to the synthesis of molecular chloride?
Calculate the amounts of reactants requires to produce 21.8 grams methyl benzoate assuming an 80% yield.
Propose a reasonable reaction mechanism for the sodium hypochlorite oxidation of 3-heptanol. Give the IUPAC name of the expected product.
how many grams of co2 are generated when 98.5 grams of aluminum oxide form, according to the equation al2(co3)3=>al203+3co2
The human body obtains 1091 kJ from a candy bar. If this energy were used to vaporize water at 100°C, how much water in liters could be vaporized? (Assume that the density of water is 1.0 g/mL.)
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