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How much ethylene glycol must be added to your car's cooling system along with 5.0 kg of water to obtain a freezing temperature of -15 oC? The freezing point depression constant of water = -1.86 oC.m-1
How many kilograms of hydrogen would be required to generate the electricity needed for a typical house? Assume the home uses about 850 kWh of electricity per month,
Predict what will happen when the following pairs of solutions are mixed. Write the molecular, complete ionic, and net ionic equations. Give the spectator ions.
The second order rate constant for a reaction is 4.2300 x 102 M-1s-1. If the initial reagent concentration is 0.93800 mol/L, determine the time (in seconds) required for the reagent concentration to reach 0.21800 mol/L.
The thermodynamic properties for a reaction are related by the equation that defines the standard free energy, Delta G circ, in kJ/mol: Delta G circ=Delta H circ-T Delta S circ where Delta H circ is the standard enthalpy change in kJ/mol and Delta..
Which of the following is true about a solution with pH = 5? Answer a. the solution is basic b. the OH- concentration > H+ concentration c. the solution is acidic d. both a and b
Propose a mechanism for the addition of bromine and water to cyclopentene. Be sure to show how the trans product results
0.250 g of a binary unknown acid, HX, requires 31.96 mL of a 0.09668M NaOH solution when titrated. What is the identity of the unknown acid.
Select all of the correct statements about the relative acid strengths of pairs of acids from the choices below. HCl is a stronger acid than H2S because Cl is more electronegative than S. H2SO4 is a stronger acid than H2SeO4 because S is more electro..
explain the hazards associated with 1.0M CH3COOH solution, 0.10M BaCl2 solution and 0.10M Na2C2O4 solution.
Eight electrons can freely move in a box whose dimensions are 4m x 1m x 1m. sketch the occupied energy states and write the equation of the degenerated energies, including the quantum numbers, from the occupied states.
Sodium sulfate dissolves as follows: Na2SO4(s) 2Na+(aq) + SO42- (aq). How many moles of Na2SO4 are required to make 1.0 L of solution in which the Na concentration is 0.10 M.
What is the total volume of gaseous products formed when 82.4 liters of carbon monoxide react completely according to the following reaction? (All gases are at the same temperature and pressure.) carbon monoxide (g) + water (l)------- carbon dioxi..
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