What volume of the liquid should he use
An experiment requires 43.0 of ethylene glycol, a liquid whose density is 1.114 . Rather than weigh the sample on a balance, a chemist chooses to dispense the liquid using a graduated cylinder. What volume of the liquid should he use?
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Calculate the equilibrium constant (Keq) for the reaction of equimolar amounts of acetophenone and sodium hydroxide to generate the enolate. The pKa values of acetophenone and water are 19.0 and 15.7, respectively.
What is the molarity of ions in a solution formed by dissolving 7.40 of the mixture in enough water to form 600.0 of solution? A mixture contains 76.5% NaCl , 6.5% MgCl2 by mass.
Briefly discuss interpretations of your observations and results. Discuss how your observations illustrated LeChatelier's principle.
What is the enthalpy of vaporization of acetone (CH3COCH3) at its normal boiling point of 56.2?C? The entropy of vaporization
What is the structure os glycylserine and serylglycine?
When sodium reacts with chlorine, 411 kj/mol is released. Calculate the amount of heat released if 1.37 mol of sodium form.
A 0.1946 g piece of magnesium metal is burned in a constant volume calorimeter that has a heat capacity of 1349 J/°C. The calorimeter contains 500 g of water and the temperature rise is 1.40°C. Calculate the heat of combustion of magnesium
Assume you dissolve .297 g of the weak acid benzoic acid in enough water to make 105 mL of solution and then titrate the solution with .141 M NaOH. What are the concentrations of Na+ at the equivalence point?
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How does Hume's portrayal of civilization and savagery compare to Rousseau's idea of the savage?
State if this is an anthropocentric or ecocentric approach to environmental ethics and (2) explain why you
The moral hazard problem arises when people Multiple choice question. have to bear the positive consequences of their actions.
The Limits of Political Obligation. Several texts we have studied so far attempt to adjudicate the proper relationship between the citizen and the state.
The practice of ruling out simple, logical explanations, experimentally or conceptually, before considering more complex or abstract explanations.
According to Adam Smith, which of the following human sentiments is the strongest of them all given that we are not in survival mode?
Name and explain the experimental design being used in this study. Suggest why the use of faces of a range of ages would have improved validity.