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Determine whether each five compounds (naphthalene, benzoic acid, sodium benzoate, ethly 4-aminobenzoate, and ethly 4-aminobenzoate hydrochloride) is predominantly ionically or covalently bonded. Based upon this answer, indicate whether the compuond would be expected to be more soluble in water or more soluble in methlene chloride.
How many milliliters of a stock solution of 6.0 M of HNO3 would you have to use to prepare 110 mL of 0.500 M HNO3? If you dilute 10.0 mL of the stock solution to a final volume of 0.250 L, what will be the concentration of the diluted solution
Draw the structure(s) of the product(s) of the Claisen condensation reaction between ethyl phenylacetate and ethyl formate.
If 4.00 mL of vinegar needs 41.5 mL of 0.150 M NaOH to reach the equivalence point in a titration, how many grams of acetic acid are in a 1.80 qt sample of this vinegar?
In the reaction MnO4? + 8H+ + 5e? = Mn2+ + 4H2O, the manganese in 3.95 grams of KMnO4 (M.W. 158.0) were reduced to Mn2+. How many coulombs of charge must have been transferred to the permanganate ion? A) 1.60 x 104 C B) 2.41 x 103 C C) 1.20 x 104 C
To estimate the percentage of all-trans-lycopene present in the original tomato paste, should you average the percentages obtaned by all the members of your team? If not, what should you do, and why?
Zinc metal is produced by the reaction of its oxide with carbon monoxide at high temperature. The equlibrium constant for the equation
If a buffer solution is 0.440 M in a weak acid (Ka = 1.0 × 10-6) and 0.230 M in its conjugate base, what is the pH?
Calculate the molar solubility of Mg(OII)_2 in a solution with a pH of 12.8 (K_op of Mg(OH)^2 is 1.2 * 10^-11
Suppose that 10.9 kJ of heat energy is removed from a granite sample at 25°C. If it has a mass of 625 g, what is its new temperature
A mercury mirror forms inside a test tube by the thermal decomposition of mercury(II) oxide. 2 HgO(s) 2 Hg(l) + O2(g) Hrxn = 181.6 kJ (a) How much heat is needed to decompose 504 g of the oxide? kJ
A sample of argon gas collected at a pressure of 761 mm Hg and a temperature of 283 K has a mass of 32.2 grams. The volume of the sample is. answer in L please.
An aqueous CaCl2 solution has a vapor pressure of 83.0 mmHg at 50 degrees celsius . The vapor pressure of pure water at this temperature is 92.6 mmHg.
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