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What happens to the temperature of a liquid as evaporation occurs? A. The temperature of the liquid increases. B. The temperature of the liquid remains the same. C. The temperature of the liquid decreases. D. Liquids cannot evaporate
What is the hydronium ion concentration of a 0.20 M solution of an acid with a Ka
Discuss the difference between Mass Spectroscopy, Nuclear Magnetic Resonance,
A reversible adiabatic expansion of NO2 (g) from an initial V=20dm^3 and an initial T=300K to a final P=1bar. Find Vf, Tf, and the change in entropy for both the system and surroundings.
the absorbance of the solution was found to be .5528. Based on the calibration curve of Y=26.1x + .081 (where absorbance is on y axis and concentration of product C is on the x axis) determine the equilibrium concentration of C, then using an ICE ..
The reactant concentration in a first-order reaction was 8.20×10?2M after 10.0s and 6.10×10?3M after 90.0s. What is the rate constant for this reaction
For the reaction Na2CO3(aq)+2HCl(aq)= 2NaCl(aq)+CO2(g)+H2O(l), suppose you have 100 mL of 3.80M Na2CO3. How many milliliters of 0.920 M HCl would you have to add to the sodium to consume the Na2CO3 completely
compound of carbon and oxygen contains 3.00g of carbon and 8.00g of oxygen, what is the mass percent of carbon in the compound?
A 0.150 M solution of an enantiomerically pure chiral compound D has an observed rotation of 0.12° in a 1-dm sample container. The molar mass of the compound is 135.0 g/mol. (a)What is specific rotation of D
Based on the procedure that you used in this experiment and using the same molar quantaties of reactants, develop a procedure that would be suitable for the preparation of isobutyl propionate.
Calculate the concentration of Cu2+ in a solution prepared by adding 5.2 x 10 -3 mol of CuSO4 to 0.450L of 0.38 M NH3.
Sodium ions are found int eh extraellular fluid in a concentration of 150mM. How many grams per liter is this?
The dissociation pK for acetic acid is 4.76. Suppose that we dissolve a mole of this weak acid in 10L of water
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