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Write the structural formula for each of the following compounds.
a. 3-ethyl-2,3-dimethylpentane
b. 3,4-diethylhexane
c. 2,3,4,5-tetramethylnonane
What volume (in mL) of 0.220 M NaOH should be added to a 0.135 L solution of 0.028 M glycine hydrocholoride
For the following reaction, label the acid, base, conjugate acid, and conjugate base. Given the following values for Ka, circle the stronger acid and stronger base and predict whether the equilibrium is toward the reactants or products.
Calculate (approximate) the pH of a 0.30M solution of ascorbic acid. Must use an ICE table (Initial Concentration, Change in Concentration, Equilibrium Concentration) and the quadratic formula unless the "x is small" approximation can be used.
You are on a backpacking trip and need to make a fire. You have some batteries and a piece of foil from some gum. These should be sufficient to get the fire going.
What is the concentration of an unknown water sample if the assumed resistance is 650ohms?
If the pressure of 50.0 mL of oxygen gas at 100 °C increases from 735 mm Hg to 925 mm Hg, what is the final volume? Assume temperature remains constant.
Draw a flow diagram simply showing how to separate a neutral organic compound from an organic acid and purify both.
Natural lithium is 92.58% lithium-7, with atomic weight 7.016, and 7.42% lithium-6, with atomic weight 6.015. What is the observed atomic weight of lithium as it occurs in nature?
The equilibrium internuclear distance of deuterium iodide, DI, is 160.4 pm, where 1 pm = 1x10-12m.The relevant atomic masses are: mD = 2 amu and mI= 127 amu
Would 50 g KNO3 completely dissolve in 100 g water at 40 degrees Celcius?
If the half-life of a first-order reaction is 4.609 hours what is the instantaneous rate of the reaction in M/day when the concentration of A equals 0.251 M?
What volume of a concentrated HCl solution, which is 36.0% HCl by mass and has a density of 1.179g/mL , should be used to make 4.95 L of an HCl solution with a ph of 1.5?
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