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Transform the dependent variable (absorbance) to their natural logarithms, and plot them against the independent variable (time). Identify a time t' that defines the begining of the linear portion of the decay curve.
a 13 ml sample of a solution of pbclo32 was diluted with water to 17 ml. a 15 ml sample of the dilute solution was
What volume of ethylene glycol (C2H6O2), a nonelectrolyte, must be added to 19.0 L of water to produce an antifreeze solution with a freezing point of -34.0°C
If .090 mole of solid NaOH is added to 1.0 liter of .180 M CH3COOH, what will the pH of the resulting solution be
Calculate the pH when 16.00 mL of 0.100 M sodium hydroxide is added to 10.00 mL of a 0.100 M phosphoric acid solution.
Phosphorus-32 has a half-life of 14.0days . Starting with 4.00 g of 32p , how many grams will remain after 42.0 days?
Calculate script e° values for the following cells. Which reactions are spontaneous as written (under standard conditions)? Balance the reactions. Standard reduction potentials are found in the table
pH of 20.0 mL of 0.10M acetic acid/sodium acetate buffer before and after the addition of 2.0 mL of 0.10 M NaOH; 2.0 mL 0.10 M HCl
Show your work in finding the partial pressure of the nitrogen gas, PN2. 2) Show your work in finding the mass of the nitrogen collected
When a 8.37-g mixture of methane, CH4, and ethane, C2H6, is burned in oxygen at constant pressure, 445.8 kJ of heat is liberated. What is the percentage by mass of CH4 in the mixture
What is the electron geometry. 3. What is the molecular geometry. 4. What are the hybridized orbitals. 5. Is the molecule polar or non-polar
Enzymatic oxidation of naphthalene by bacteria proceeds of intermediate cis-diol. which prochiral face of naphthalene is hydroxylated in this process?
120.0 mL sample of a 0.81 M H2SO4 solution is diluted with enough water to reduce the concentration of the solution to 0.50 M. What is the volume of the diluted H2SO4 solution.
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