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Polar solute, polar solvent. Nonpolar solute, Nonpolar solvent. Or Nonpolar solute, Polar solvent?
The first ionization energy of bismuth is Ei1=+703 KJ/mole. What is the longest possible wavelenghth of light that could ionize an atom of bismuth?
Calculate the concentration of the hydronium ion in a 3.433 * 10^(-2) M solution of potassium perchlorate acid to the correct number of significant figures or decimal places.
A 4.70 g nugget of pure gold absorbed 260 J of heat. The initial temperature was 28.0°C. What was the final temperature.
The concentration of an enzyme within a cell is extremely low relative to other material present, yet functions effectively in its metabolic role.
A gas of unknown molar mass was allowed to effuse through a small opening under constant pressure conditions. It required 184 s for 1.00 L of this gas to effuse.
Combustion of 5.50 of this compound produced 8.07 of carbon dioxide and 3.30 of water. How many moles of carbon C, were in the original sample. How many moles of hydrogen H, were in the original sample
Calculate the solubility (in M units) of ammonia gas in water at 298 K and a partial pressure of 7.50bar . The Henry's law constant for ammonia gas at 298 K is 58.0 M atm and 1 bar = 0.9869 atm.
Draw the electron dot formula for each of the following molecules or ions: a) H2O; b) CCl4; c) H3O^+; d) SiF4; e) CF2Cl2; f) C2H6 HH
oxygen gas is collected over water at 25 degrees C. The total pressure of the gas is 780.00 mm Hg. What is the partial pressure of the dry oxygen gas?
In a separate experiment, an empty flask is weighed, 35.3 cm3 of the lubricating oil is poured into the flask and the flask is reweighed. If the scale reading was 124.8 g in the first weighing, what would it be in the second weighing
Calculate the percent ionization of 8.0×10?3 M butanoic acid in a solution containing 8.0×10?2 M sodium butanoate
After adding 0.25 mL of 0.50 M NaOH, the pH of the same solution changed to 8.05. Calculate the buffer capacity (? mmol OH-/? pH) of this solution to two decimal places.
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