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What is the final volume in milliliters when 0.562 L of a 47.9 % (m/v) solution is diluted to 21.7 % (m/v)?
One of the reactions (FeCl3 or NaOH) is present in a stoichiometric excess. What is the molar concentration of the excess reaction remaining in solution after Fe(OH)3 has been precipitated
Name one advantage and one disadvantage of using this type of fuel to produce electricity.
What ratio [CH3NH3+]/[CH3NH2] is needed to prepare a buffer solution with a pH of 8.60 from methylamine, CH3NH2, and methylammonium chloride, CH3NH3Cl? Kb of CH3NH2 = 3.7 10-4.
A 0.100 M solution of a certain weak acid, HA, is found to have a pH of 2.45. Calculate the % ionization for the acid. Enter the answer as a decimal number with 3 decimal places. Do not enter the units.
The density of olive oil is 0.918 , the density of vinegar is 1.006 , and the two do not mix. If a certain mixture of olive oil and vinegar has a total mass of 407.1 and a total volume of 421.6 , what is the volume of oil and what is the volume of..
A solution containing 3.47mM X (analyte) and 1.72 mM S (standard) gave peak areas of 3473 and 10222, respectively, in a chromatographic analysis. Then 1.00ml of 8.47mM S was added to 5.00ml of unknown X, and the mixture was diluted to 10.0ml. This..
To identify a diatomic gas () a researcher carried out the subsequent experiment: She weighed an empty 4.6- bulb, then filled it with the gas at 1.80 and 24.0 and weighed it again. The difference in mass was 9.5. Classify the gas.
What are two of the more important sources of unavoidable error in this the evaluation of the gas law constant?
Define when 0.593 g of an unknown solute is dissolved in 14.9 g of water; the freezing point is depressed by 1.74 Celsius degree. Evaluate the molecular weight of the unknown solute, assuming that it is a nonelectrolyte
Addition to double bonds, oxidation of double bonds - Draw the structure/structures for the major organic product/products formed when 1-methylcyclohexene reacts
Upon decomposition, one sample of magnesium fluoride produced 2.55 kg of magnesium and 3.99kg of fluorine. A second sample produced 1.40 kg of magnesium.
What is the role of flu vaccine? What is the chemical components of flu vaccine each year?
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