Determining the same mass of solute
Mass of solvent=134.4 g/mol
The same mass of solute is dissolved in 9.82 g of t-butanol instead of cyclohexane. What is the expected freezing pt. change of this solution?
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The reaction of pure (S)-2-chlorobutane with sodium cyanide in dimethylsulfoxide produces pure (R)-2-cyanobutane. Explain why a racemic mixture is not expected for this reaction if it occurs via an Sn2 mechanism.
A 0.150 M NaCl solution is referred to as a physiological saline solution because it has the same concentration of salts as normal human blood. Calculate the mass of NaCl needed to prepare 275.0 mL of a physiological saline solution.
One binkle is defined as being exactly 3 × 10^12. A) If you had 1.0 kg of nails and 1.0 kg of helium atoms, would you expect them to have the same number of binkles? Using complete sentences
The vapor pressure of a water-insoluble organic substance is negligible at 100 degree C. Can this substance be purified by steam distillation? explain.
What is the minimum concentration of Mg2+ required to begin precipitating Mg(OH)2(s) in a solution of pH 10.82? For Mg(OH)2
Write the chemical reaction for: KH2PO4/K2HPO4 buffer solution + NaOH (aq) and Write the chemical reaction for: KH2PO4/K2HPO4 buffer solution + HCl (aq)
The hydrocarbon contains 93.75% carbon and 6.25% HYDROGEN. Calculate its empirical formula.
A student removes the thermometer and stirring wire in part b of the experiment to add the naphthalene, and wipes them off, losing .50 mL of cyclohexane. What percent error will this introduce if the original 5.00mL is used in the calcuations?
Which of the following equations represents the proper net ionic equation for the complete neutralization reaction between the strong base Ba(OH)2 (aq) and the weak acid H2S (aq)?
Iron (III) oxide reacts with carbon to give iron and carbon monoxide. How many grams of C are required to react with 80.0g of Fe2O3?
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