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In what ways do the properties of water influence the strength of: (a) electrostatic interactions; (b) hydrogen bonding; and (c) hydrophobic interactions. Explain in physical and chemical terms.
What did the student do wrong? If the solution had been prepared correctly to the desired 1.0 M concentration, what volume of this stock should be diluted to prepare 100.0 mL of a 1.0 mM working solution?
concentrated sulfuric acid 18.4-molar h2so4 has a density of 1.84 grams per milliliter. after dilution with water to
How might you use 13C NMR spectroscopy to determine if the brominated product is contaminated with some unreacted starting material (during the bromination of trans-cinnamic acid)
Describe how you will prepare the 1.00 x 10-3 M phosphate solution using the phosphate stock solution provided (1.00 x 10-1 M) to create a 200 mL of 1.00 x 10-3 M phosphate solution.
Draw the electron-dot formula and predict the shape for each polyatomic ions: a) NO2^-; b) PO4^3-; c) ClO4^-; d) SF3^+.
Express the concentration of a 0.0720 M aqueous solution of fluoride, F-, in mass percentage and in parts per million
Calculate the mass in grams for an iron bar that loses 2.72 when its temperature drops from 242 to 72.
Determine pH of a solution when 25.00 ml of 0.100 M HOAc is titrated with 0.100 M KOH. What is the pH at the equivalent point. (ka for HOAc = 1.80 x 10-5) HOAc + KOH ---- KOAc + H2O
During a quirky promotion by a discount sporting goods store, golf balls were given away free when purchasing Ping-Pong balls in bulk. An equal mass of golf balls was given away based on the mass of ping
H2 and Cl2 combine to form HCl. In a gas phase equilibrium mixture of H2, Cl2, and HCl at 300 K, [HCl] = 0.0036 mol/L and [Cl2] = 0.00485 mol/L.
if a 190 mg piece of gold density 19.32 rm grm cm3 is hammered into a sheet measuring 2.1times1.0 rm ft what is the
Butane (C4H10) reacts with oxygen in the air to from carbon dioxide and water. how many moles of carbon dioxide can be formed from 1.25 mol of butane and excess oxygen?
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